Moparts
New Edelbrock Carb Issues.
Posted By: TimS
New Edelbrock Carb Issues. - 03/06/10 11:20 AM
Was wondering if anyone else has had any issues with new Edelbrock carbs lately? I bought a model 1411, which is a 750 carb with electric choke, for my 69 Super Bee 383 car.Installed it with a new filter and ran new steel lines to clean up the old rubber hose stuff. After installing and adjusting things seem to go very well until I drove it to work and got the car hot. It appears I either have a flooding issue or gas boiling in the bowls cause the car doesn't want to start after sitting for about 10 minutes or so. I can get it to go but you gotta crank for awhile and cram the acc. to the floor. Called the tech guys and they said to add a spacer to isolate some of the heat. I had a phenolic one so I did that. Ran the car last night some and it appeared to help but not totally correct my problem. I'm close to taking it back to O Reilly's for another but was just wondering if anyone else has run into this on these. I've had lots of Holleys and Carters over the years and haven't had this type of stuff. On my brand new carbs, it has been hookup adjust and go. Any thoughts? Thanks!
Posted By: rapom
Re: New Edelbrock Carb Issues. - 03/06/10 12:34 PM
There is a big post somewhere here on Moparts last year about how bad the Edelbrock 750 carb is. Many owners have had a stumbling issue from a standing start. All the other carbs edelbrock sells are ok. Not sure about how to help you on the problem your having now.
Posted By: ohiodemon
Re: New Edelbrock Carb Issues. - 03/06/10 12:40 PM
run,dont walk and take that junk back.
get your cash back.
get a holley ASAP.
Posted By: eightlitermopar
Re: New Edelbrock Carb Issues. - 03/06/10 12:57 PM
I have an edelbog on my car, and it has the same issues.
It also is a 750cfm. Last year I "borrowed" my dad's 600 cfm edelbrock for a while, and I was surprised how much better it ran with a different carb!
I now have the 750 back, I have been able to tweak some stuff to reduce the bog...but still there.
Soon to make some changes..Try going with the 800 or 650 cfm if you are hell bent on an edelbrock.
Hope this helps!
Posted By: RapidRobert
Re: New Edelbrock Carb Issues. - 03/06/10 01:58 PM
Quote:
Try going with the 800 or 650 cfm edelbrock.
. Take it back ASAP & get your money back before that window of opportunity closes.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/06/10 08:38 PM
I wish I had seen that old post. Actually I don't have a stumbling problem at all. It works well when I can get it to run after it heats up.I'll mess with it this weekend and see what happens but back it'll go if I don't get things resolved by Monday.
Posted By: Lefty
Re: New Edelbrock Carb Issues. - 03/06/10 08:52 PM
Quote:
ran new steel lines to clean up the old rubber hose stuff.
The steel lines will absorb much more heat than rubber lines.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/06/10 10:26 PM
The 5/16 phenolic spacer seems to have cured my hard start but I must have a vacuum leak somewhere now. It runs fine but at the hit of the throttle at times I get a whistle. Maybe a slight leak around that spacer I put on.
Posted By: Neil
Re: New Edelbrock Carb Issues. - 03/06/10 10:34 PM
Just in case you haven't done so already I think it would be a good idea to run a soft gasket on both sides of that plastic spacer to help prevent leaks from occuring.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/07/10 12:39 PM
Messed with that 750 carb the rest of the day after getting back from the Indy Mopar Swap. Made no headway with it so I took the carb back to O Reilly's last night. They didn't have anymore 750's in the store but they did have a model 1406 600cfm so I got that one. Stuck it on when I got back and after tweaking a little it seems to run well. Didn't notice any hard start after heat but we'll see,time will tell. Trying to get this car in shape for the Mopar Nats in August.
Posted By: moper
Re: New Edelbrock Carb Issues. - 03/07/10 01:12 PM
There are two models of 750... the 1411 is the "correct" one for your application, but there's a couple things I would have checked. First is float drop. Any carb that gets dropped just right could have a low float or two. Second is the step up springs. They are supposed to ship with the 5"Hg springs but I have seen the wrong ones in there before. Either of those two things being off could cause the issues you have. Heat is rarely a problem unless it's parked hot for an hour or more but doesnt cool down enough to need the choke. 10-15 minutes is not enough time for the fuel level (if filled properly) to evaporate that far.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/07/10 02:37 PM
When I got the carb to the store the counter guy said I could have taken it apart if I wanted to and it wouldn't void the warranty. The tech guy from Edelbrock didn't give me that impression but that'll be my course of action if I have an issue again. My thinking too was I just paid 300 bucks for this and I shouldn't have to disassemble and troubleshoot that far.I would like to know what the problem is though.It appears to have been an issue with that particular carb however. The 600 I got works fine after heated up and sitting.
Posted By: SixDRacing
Re: New Edelbrock Carb Issues. - 03/07/10 03:40 PM
the hard starting after 10-15 minuntes of setting with a hot engine is most likely a high float level. the fuel will heat up to the point of boiling. as this accures, it boils over into the ventures and loads the cylinders with exsess fuel. lowering the float normaly will fix the problem.
x2 I took my new 750 back and got the 600
I can tell I lost a little top end,but gain way more "drivabilty"
can stomp it from a 750-850 idle and never miss a beat all the way to 5000rpms banging gears
picked up low end and throttle responce
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/07/10 08:44 PM
I got the same thing. Response pretty good and driveability better than the 750. I'll like the 600 as I drive to the Mopar Nationals this year over the 750 in the long run.
Posted By: Junky
Re: New Edelbrock Carb Issues. - 03/07/10 09:32 PM
The Edelbrock 600 is a sweet little carburetor, but lacks at the top end. If you ever want a performance carb, get the 3310 Holley 750. Great all around carburetor for a 383!
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/08/10 11:40 AM
I would have to say that with all my years working with carbs and mainly buying Carters and Holleys that this is the most I've had to do to any of those beyond the normal tweeking to get results.
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/08/10 05:39 PM
Quote:
run,dont walk and take that junk back.
get your cash back.
get a holley ASAP.
that is a smart man. why anybody would run a Carterbrock carb is besides me. go get a holley and be done.
Posted By: 05dakota
Re: New Edelbrock Carb Issues. - 03/08/10 06:26 PM
and enjoy fuel leaks.
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/08/10 07:31 PM
Quote:
and enjoy fuel leaks.
fuel leaks with what??? a holley? I've had several and know nothing about fuel leaks.
Posted By: Fury Fan
Re: New Edelbrock Carb Issues. - 03/08/10 07:36 PM
Quote:
and enjoy fuel leaks.
And less MPG. Some people do care about that, especially when they drive from Indiana to Columbus OH (that's a pre-emptive rebuttal for Swingin's 'who cares about MPG?' response, which is always right around the corner 
).
Here are 2 links:
https://board.moparts.org/ubbthreads/show...&PHPSESSID=
https://board.moparts.org/ubbthreads/show...&PHPSESSID=
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/08/10 07:40 PM
Quote:
Quote:
and enjoy fuel leaks.
And less MPG. Some people do care about that, especially when they drive from Indiana to Columbus OH (that's a pre-emptive rebuttal for Swingin's 'who cares about MPG?' response, which is always right around the corner ).
Here are 2 links:
https://board.moparts.org/ubbthreads/show...&PHPSESSID=
https://board.moparts.org/ubbthreads/show...&PHPSESSID=
FWIW, I got just as good mpg in my 340 swinger w/ the 750DP as the 625 carter. any 4bbl carb is going to use gas if your foot is on the floor. I'd guess 90% of our members have other cars they drive for "gas milage" if you want gas milage go buy a honda.
Posted By: moper
Re: New Edelbrock Carb Issues. - 03/08/10 11:39 PM
Holleys are just a little simpler and more crude in terms of operation over the Carter design. If they work for you best, great. It doesnt matter who made the carb. You can make the same power when the carb, any carb, is properly set and matched to the combo.
Posted By: Junky
Re: New Edelbrock Carb Issues. - 03/09/10 12:26 AM
Quote:
Holleys are just a little simpler and more crude in terms of operation over the Carter design. If they work for you best, great. It doesnt matter who made the carb. You can make the same power when the carb, any carb, is properly set and matched to the combo.
That didn't work for me. I had a 750 Edelbrock Performer. Tuned on that thing till I was cross eyed. Ended up with a 750 Holley. Tuned on it till it flat out performs that Edelbrock 750 greatly! There's no comparison as far as I'm concerned. That's just my experience.
Posted By: MY340
Re: New Edelbrock Carb Issues. - 03/09/10 05:26 AM
Quote:
Quote:
run,dont walk and take that junk back.
get your cash back.
get a holley ASAP.
that is a smart man. why anybody would run a Carterbrock carb is besides me. go get a holley and be done.
I've been waiting for the "buy a Holley" guy to show up. 
He never misses an Edelbrock carb thread.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/09/10 10:22 AM
You can probably find as many Holley bashers out there as there are Carter/Edelbrock. Everybodies experiences are different and when it's bad for some reason you tend not to like or want it.I've had lots of 600/750 Holleys and have had problems with the pump diaphrams not lasting on some, causing leaks. The Holley I took off to replace with the Edelbrock I had replaced the pump diaphram twice within a year. Same issue I had with my 74 Roadrunner back in 1978 and others along the line. I prefer the Carter type setup.But there are Carter issues too. Each has its own in my opinion.
Posted By: torkrules
Re: New Edelbrock Carb Issues. - 03/09/10 12:08 PM
Quote:
You can probably find as many Holley bashers out there as there are Carter/Edelbrock. Everybodies experiences are different and when it's bad for some reason you tend not to like or want it.I've had lots of 600/750 Holleys and have had problems with the pump diaphrams not lasting on some, causing leaks. The Holley I took off to replace with the Edelbrock I had replaced the pump diaphram twice within a year. Same issue I had with my 74 Roadrunner back in 1978 and others along the line. I prefer the Carter type setup.But there are Carter issues too. Each has its own in my opinion.
I got a couple of 650 thunderseries carbs I plan to run on a hemi. I got them from Tim Banning at FHO. One of the things I remember him saying was not to run too much fuel pressure. He said 5-6psi tops. Too much fuel pressure will raise the float level which gets exaggerated with a hot engine. Might be something to look into. The instruction say the same thing. Not sure if the AFB style have the same instructions.
Posted By: moper
Re: New Edelbrock Carb Issues. - 03/09/10 01:08 PM
I think that has more to do with leverage (or less leverage than the Holley) on the needle and seat than performance. If someone has enough of an issue that no matter what swapping of the adjustbale stuff can't make it better, it was probably the wrong carb. Doesnt matter if it's Holley, Demon, Carter, Edelbrock, Predator, or a custom shop's carb. I think a TON of the Edelbrock 750 issues are the result of that fact that there's two types, and only one is a performance carb while the other is listed as a mileage peice. It's like taking the Holley off a factory 383 and expecting it to run like a 3310 on a modified engine. It's unrealistic.
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/09/10 01:25 PM
Quote:
Quote:
Holleys are just a little simpler and more crude in terms of operation over the Carter design. If they work for you best, great. It doesnt matter who made the carb. You can make the same power when the carb, any carb, is properly set and matched to the combo.
That didn't work for me. I had a 750 Edelbrock Performer. Tuned on that thing till I was cross eyed. Ended up with a 750 Holley. Tuned on it till it flat out performs that Edelbrock 750 greatly! There's no comparison as far as I'm concerned. That's just my experience.
you can quote me on this... a 750 Eddy/carter carb will NOT ever out perform a holley 750DP ever. You can take your "well tuned 750 eddy" and I'll drop an out of the box 750DP on an beat you by a tenth, and that's before I tweak it. I've run both types on many cars. The eddy design is great for a driver but if you want anykind of performance you'll want a holley.
Can he make his 750 work, sure but it should be pretty close out of the box. I'd pump up the metering rods, and it is a good idea to have a good vacuum gauge when you are trying to tune a carb. As mentioned if you have too much fuel pressure they will flood. I also had issues w/ the floats on hard turns and stops they stall. If you have a big block and you want an eddy buy the 800 thunder. They don't seem to have the issues like the 750.
If you want to beat a 750 Holley w/ an Eddy 750 you'd better have 2 on the car..
Posted By: Junky
Re: New Edelbrock Carb Issues. - 03/09/10 03:32 PM
The 750 Edelbrock I speak of was a vacuum secondary carb.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/09/10 05:07 PM
I sat down and watched the little how to CD that comes with the Edelbrock and the demonstrator states 7psi max on fuel pressure for the AFB style carbs. I'm running a little over 6. I initially suspected a possible over pressure conditon but around 6 shouldn't push those seats off. I popped the top on the 600 and found the float adjustments to be off per the video. I reset those and really improved idle on it.
Posted By: moper
Re: New Edelbrock Carb Issues. - 03/09/10 06:00 PM
Quote:
The 750 Edelbrock I speak of was a vacuum secondary carb.
Actually, it's not. It's airflow sensing thru the secondary and uses a counterweight or spring to counteract the air door's tendency to flop open. Holleys use a pressure drop off the primary bores to open the secondaries, hence the name vacuum secondary.
72, do try not to sound so ignorant and insecure about things...lol
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/09/10 06:07 PM
Quote:
Quote:
The 750 Edelbrock I speak of was a vacuum secondary carb.
Actually, it's not. It's airflow sensing thru the secondary and uses a counterweight or spring to counteract the air door's tendency to flop open. Holleys use a pressure drop off the primary bores to open the secondaries, hence the name vacuum secondary.
72, do try not to sound so ignorant and insecure about things...lol
wha? I never said a eddy 750 is vacuum...I know how it works,.
Posted By: Junky
Re: New Edelbrock Carb Issues. - 03/09/10 07:48 PM
Quote:
Quote:
Quote:
The 750 Edelbrock I speak of was a vacuum secondary carb.
Actually, it's not. It's airflow sensing thru the secondary and uses a counterweight or spring to counteract the air door's tendency to flop open. Holleys use a pressure drop off the primary bores to open the secondaries, hence the name vacuum secondary.
72, do try not to sound so ignorant and insecure about things...lol
wha? I never said a eddy 750 is vacuum...I know how it works,.
That was directed at me. I realize that it's not a "vacuum" secondary carb, just a reference that most everyone uses. I was just pointing out and clarifying what carb I was speaking of that I worked with, that it wasn't a double pump.
The "72" part was directed at you.
Posted By: volaredon
Re: New Edelbrock Carb Issues. - 03/09/10 10:02 PM
you could not give me a Holley 4 bbl;
as far as MPG and the "buy a Honda" BS, myself, no; MPG is not "the" "#1" when I buy a vehicle; BUT I want the vehicle to get the best MPG it can--FOR WHAT IT IS! My brother had a 360-powered Ramcharger; had a holley 1850 on it; what a POS; it never seen more than 9MPG; I dropped a TQ on there and it ran so much better than it did with the Holley, it was unbelieveable- and MPG went up to 14; just by the carb swap; same vehicle, same powertrain, just a different carb. so (to a point) MPG does matter.
and every time I try to "experiment" wiuth a Holley my results are about similar; I always wind up going back to Carter.
Posted By: Supercuda
Re: New Edelbrock Carb Issues. - 03/09/10 11:21 PM
Quote:
you could not give me a Holley 4 bbl;
as far as MPG and the "buy a Honda" BS, myself, no; MPG is not "the" "#1" when I buy a vehicle; BUT I want the vehicle to get the best MPG it can--FOR WHAT IT IS! My brother had a 360-powered Ramcharger; had a holley 1850 on it; what a POS; it never seen more than 9MPG; I dropped a TQ on there and it ran so much better than it did with the Holley, it was unbelieveable- and MPG went up to 14; just by the carb swap; same vehicle, same powertrain, just a different carb. so (to a point) MPG does matter.
and every time I try to "experiment" wiuth a Holley my results are about similar; I always wind up going back to Carter.
Same here, Carter is the best all around carb for a driver. I care more about 1 mpg than I do 1 tenth.
Posted By: mark7171
Re: New Edelbrock Carb Issues. - 03/10/10 12:46 AM
The edelbrock AVS 800 is one of the best carbs out , for a mild big block. That 800 will slap a street avenger silly. Selection depends what you are putting it on. auto or manual makes a big difference. A 4 speed with some gearing, install a 750 DP and forget-about-it.
Volaredon- look into a Q jet , they are a bulletproof carb. After working them, actually can be Great all around.
Posted By: HitIt
Re: New Edelbrock Carb Issues. - 03/10/10 12:48 AM
Regarding the origInal post a 750 edelbrock out of the box is way overkill for a 383 unless it's a really hot engine.
Also relative fuel efficiency is a general sign of a well tuned car and a proper setup.
Edelbrock or Holley, I don't care.
Posted By: Scatransit
Re: New Edelbrock Carb Issues. - 03/10/10 01:28 AM
This worked for me...First, install a valley pan with blocked off exhaust crossovers. Then install a 1/4" carb insulator kit - Mr.Gasket has 'em...It's a laminated design with 2 aluminum plates and 3 gaskets...I painted the edges flat black to make less noticeable. If you're using a stock intake, make sure to get the one with 4 individual barrel holes as opposed to the one with one big square hole.
This will greatly reduce "hot soak" issues....regardless of carb brand used. Yes, cold driveabilty may be affected slightly, but unless it's a daily driver, it's not a big deal...
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/10/10 11:40 AM
I agree about the 750 being overkill for a 383 for general driveability use. The Edelbrock tech told me the same thing. The 750 would be more suited for a 440HP engine like I have in my 68 Super Bee right now or a hopped up 383 with more cam , head work etc... Mine is stock. The 600 was a better choice as I got to run 2 new ones on it back to back. My issues weren't actual performance related so I got the chance to evaluate from that standpoint. I use new and old age Carters on all my other cars with no problems. All but the stock Holley six barrel I have on my 70RR but those ar two's.
Posted By: Damned67
Re: New Edelbrock Carb Issues. - 03/10/10 12:33 PM
I went through two Holleys on a 360, before I found a good Carter. Loved it so much I picked up a second as a spare.
Had issues with my 750 AFB (edelbrock) on my 440, until I got the 'strip kit' and tuned it properly, with the help of an LM-1 O2 meter. Then it was great!
With my 505, I had to go Holley, and went with a Dominator.
After getting some Quickfuel metering plates, that Holley has been one of the best carbs I've owned.
Long story short: I'm a big fan of the AFB carbs, but have finally 'discovered' Holley.
I would tend to agree with most of what's been posted. I'd put a AFB on a 'street' car, and a Holley on something for the strip.
Cheers!
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/10/10 05:43 PM
I would agree with that. I'm not a drag racer so that's why the Carter/Edel combo has worked for me on my street cars. Friends of mine with big Holleys are also always complaining about fouled plugs and rough running cars. Wrong size carb for the applications any, I suspect.
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/10/10 05:58 PM
Quote:
I would agree with that. I'm not a drag racer so that's why the Carter/Edel combo has worked for me on my street cars. Friends of mine with big Holleys are also always complaining about fouled plugs and rough running cars. Wrong size carb for the applications any, I suspect.
they need to tune on them some more. Any carb will fol plugs or run lean if it's not tuned.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/12/10 11:35 AM
That's true but it could also be just a matter of wrong carb for the application.
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/12/10 12:13 PM
Quote:
That's true but it could also be just a matter of wrong carb for the application.
could be but I ran a 750HP mechanical carb on a very mild 340 and it didn't foul any plugs, run rich, and got the same mpg as the 625 carter that was on the car when I bought it.
race = Holley gas holes
mild street = carterbrock
gas milage = Q-jet/thermobog
runwhatyabrung
Posted By: bee1971
Re: New Edelbrock Carb Issues. - 03/12/10 02:53 PM
https://board.moparts.org/ubbthreads/show...&PHPSESSID=I will post that link a second time - READ IT READ IT - There are good links within links
How come the Edelbrock 750 , I REPEAT EDELBROCK 750 - 1407/1411 , NOT THE 800 NOT 600 NOT , is the most talked about Carb on this Website , and its mostly 99% Negative/Issues ???
And i dont care what you throw at it internally - Its nothing more then a P.O.S. Expensive Paperweight
I love these Quotes - Straight from the Moparts Tech Archives/Dyno 383 - Go ahead and look them up yourself - All the Dyno #s and info right here on this site
"All the aftermarket carbs tested ran fine with the stock calibration except one...the Edelbrock 750, #1407. this one ran very poorly.....it didnt really do anything well. it was just flat out lean everywhere. idle, part throttle cruise, WOT...and it didnt like to take a load at all. when getting ready to start a pull and going to full power, the motor would fall right on its face, then try to recover....finally recover, and then you could start the pull.
i found this to be pretty interesting because i also had on hand a Carter AFB 750 manual choke version which ran perfectly fine everywhere.
decent throttle response, good part throttle cruise A/F ratios, decent idle A/F ratio with the mixture screws out only 2 turns, and the WOT A/F ratio was right where it should be, and it had a pretty flat fuel curve as well.
i was running short on time, so i just continued on my testing of other things. when i was done for the night i pulled apart the Ebrock carb to see if someone had recalibrated it. this is not a new carb, but was pulled from my friends 396 Chevy yesterday morning. he's been running on the street, and didnt really indicate there was any kinds of problems with it, but there was an indication that another friend of his may have changed some jets or something.
well....that was not the case. it had all the stock jets, rods, and springs, and had no dirt or debris inside. the calibration was just that far off from ALL the other aftermarket carbs.
IMO, the Ebrock carbs are set up for motors that are much milder than what most people are building. well, most people i know anyway
anyway....back to the trenches....."
"The only carb that didnt actually run well was the Ebrock carb. it just didnt do anything well. poor idle, too lean everywhere, didnt take a load well, etc.
when i had a chance, i pulled it apart to see if there was any dirt or debris inside, and it was nice and clean. i also verified the calibration.
it was calibrated to the specs in the catalog."
"One final note....
i dont have anything against Ebrock carbs. it seems some here have a hard time grasping that it didnt run well. trust me...it didnt run well. its that simple. its not hard to tell if its good or bad when youve already made nearly 70 pulls on the motor before installing this carb.
yes, the problems it had could be tuned out of it. thats obvious since the Carter 750, which is the same thing ran just fine.
it ran how it ran...which wasnt good.
this is one of those "dont shoot the messenger" situations."
Enjoy all the Numbers / Quotes - Actually a great Arcticle on a whole bunch of Carbs - Click on Links
http://www.moparts.org/Tech/Archive/bb/25.htmlhttp://www.moparts.org/Tech/Archive/bb/26.htmlPEACE - Scott
I will add this - The Main Difference between the Edelbrock 750 and that Carter AFB 750 has alot more to doo with Internal Fuel Metering/Internal Airflow then just changing Jets and Metering Rods - And i dont care if there both made by Weber - You can take that to the Bank - Again read those LINKS
Scott
Posted By: dwbiggs
Re: New Edelbrock Carb Issues. - 03/12/10 05:14 PM
Quote:
Regarding the origInal post a 750 edelbrock out of the box is way overkill for a 383 unless it's a really hot engine.
I disagree with this...I ran a Holley 750 VS on a near stock 383 and i know it flows more than an Eddy 750. Car ran great...never had any problems.
Have to laugh when I see these reality shows that have Edelbrock as a sponsor and they throw one of their carbs on a motor...you just know the builders want to put on a Holley/Proform/Quickfuel to make real power.
Posted By: Frederick
Re: New Edelbrock Carb Issues. - 03/12/10 08:33 PM
The idle channel restriction needs to be reamed on the Edelbrock 750's to cure the bog.
Posted By: STROKIE
Re: New Edelbrock Carb Issues. - 03/12/10 10:50 PM
99% of tuning and drivability issues ("off idle bog") can occur with a single plane manifold with a modern dual plane hi rise intake manifold you can have better drivability...
Posted By: fox
Re: New Edelbrock Carb Issues. - 03/12/10 10:58 PM
While I like each of these carbs for different purposes, I ALWAYS can get better mileage with a holley!!!
The sole issue I ussually have with a holley on a street carb is in the choke!!
Posted By: MY340
Re: New Edelbrock Carb Issues. - 03/12/10 11:20 PM
I run the 1407 manual choke 750cfm Edelbrock carb on my mildly built 360 Duster and it runs great. Fattened the primary rods alittle to lean it out, adjusted the mixture screws and bumped the intial timing up to 18 degrees.
Smokes the tires out of the hole anytime with NO BOG and drop the hammer at any speed with NO BOG!
Gas mileage? who cares!
The float setting MUST be checked on even new carbs and fuel pressure is also critical like people have mentioned. I'll bet many times people blame hesitation on the carb when it's actually the timing or distributor that is the culprit.
Posted By: STROKIE
Re: New Edelbrock Carb Issues. - 03/12/10 11:50 PM
Quote:
I run the 1407 manual choke 750cfm Edelbrock carb on my mildly built 360 Duster and it runs great. Fattened the primary rods alittle to lean it out, adjusted the mixture screws and bumped the intial timing up to 18 degrees.
I agree.. The edelbrock carbs tend to want a lot (more) of initial spark advance at idle.
You need to recurve your distributor mechanical advance curve, especially if you have a larger than stock cam in the motor. More initial at idle+ less mechanical advance travel +34-36deg total timing at high rpm WOT.
Posted By: Anonymous
Re: New Edelbrock Carb Issues. - 03/13/10 12:08 AM
dont blame the carb, its the person tuning the carb.
heres 2 edelbrocks that run awesome.you just got to get inside them and tune to your specs.
Posted By: Supercuda
Re: New Edelbrock Carb Issues. - 03/13/10 01:19 AM
I have been running the same Edelbrock 1407 for over 20 years. From a 413 to 360 to 318 to a 225.
Worked fine for me, had to tune it a bit for each engine combo. On the 318 I got low 20's for mileage, a 1406 would get me mid 20's, both highway. The 360 was a bit lower, the 413 lower still, the 225 was a lark, never checked mileage, I had a 4bbl intake so I had to run it at least once just to see.
That said, and I have made this offer before with ZERO takers, I will buy your POS Edelbrock carb's at $25 a pop.
I expect to, once again, have zero takers.
i got one you can have for 25$
what the addy you want it sent to?
Posted By: Supercuda
Re: New Edelbrock Carb Issues. - 03/13/10 03:15 AM
YOu have a PM
Posted By: SomeCarGuy
Re: New Edelbrock Carb Issues. - 03/13/10 05:37 AM
You can't swing a cat on this board without a 750 Eddy post.
I think you will see a power gain with a 750 Holley or 800 AVS. Or a 750 Carter.
The small Eddys work good, but 383 will like more carb.
I currently have a 650 Carter on my 383 HP. Not bad, I can tell it is down on power from the 750 Eddy mid range that it replaced. Carter- A much better carb though all around.
I have a 750 DP that I tired last summer as well but it must have a dirt clod in it someplace as it idled well for a few minutes and then quit. I would like to be able to report a back-to-back for the board at some point.
Would really like to swap the DP for a 3310 vac. I had one of those that rocked the house. I do like the Carter style carb for a dailey use car. Wouldn't mind a 800 AVS either.
Posted By: bee1971
Re: New Edelbrock Carb Issues. - 03/13/10 05:20 PM
Quote:
dont blame the carb, its the person tuning the carb.
heres 2 edelbrocks that run awesome.you just got to get inside them and tune to your specs.
Thats Funny - The Person HA HA HA HA
Hopefully Those Are not 1407s on that Awesome Ride ???
Seriously , Nice Car
But Back to the Subject
Guys that Love There 1407s/1411s dont realize how much Performance there leaving on the Table until they Actually Swap To a Holley or a Edelbrock 800 Series
I Found This arcticle the other day - Read it
The Edelbrock 800 is good for at least 2/10s-3/10s in the 1/4 over a well tuned 1407
And Thats excactly what i noticed on my 71 Superbee when i did the Swap - And my Edelbrock 800 was box stock other then me Changing Metering Rod Springs
And to those who say a 750-800cfm Edelbrock carb is overkill on a 383 , Think Again
Well the 750 is overkill - As in it KILLED MY PERFORMANCE - By the way those Chevy Guys love those P.O.S. 1407s on Ebay
Edelbrock 800 is an Awesome Carb ! - Why Anyone would waste there money on a 1407/1411 is beyond me
READ THIS NOW !!!!!!!!!!!!!AWESOME ARCTICLE
Third Page has the #s/Times
http://www.moparmusclemagazine.com/techa...test/index.html
Posted By: bee1971
Re: New Edelbrock Carb Issues. - 03/13/10 05:27 PM
I Give You Guys Dyno #s and now 1/4 Mile #s
And Watch , Some will still come on here and say the 1407/1411 is Still The Greatest Thing Since
EPS750 Vs. EPS800 Carburetor & Intake Test - Edelbrock EPS Carburetors: Worth The Time!
EPS 750 vs EPS 800 Comparison
Baseline: 750 Edelbrock Performer, rpm intake; metering rods-.071x.047; jets: .110 primary, .107 secondary. Weather: 97 degrees F., 60 percent humidity, 29.94 barometer. Additional changes: Hoosier slicks 26 x 9
RUN 60 Foot 1⁄8 mile 1⁄4 mile mph notes
1 1.89 8.53 13.68 97.62 after one hour cooldown
2 1.90 8.62 13.79 96.98 hot lap
3 1.89 8.58 13.77 97.23 half-hour cooldown
Test: 800 Edelbrock Performer, rpm intake; metering rods-.071x.047; jets: .113 primary, .107 secondary. Weather: 98 degrees F., 54 percent humidity, 29.94 barometer. Additional changes: Hoosier slicks 26 x 9
Run 60 Foot 1/8 Mile 1/4 Mile MPH Notes
1 1.86 8.40 13.44 99.89 after one hour cooldown
2 1.87 8.46 13.53 99.21 hot lap
3 1.87 8.44 13.48 99.47 half-hour cool down
Posted By: Junky
Re: New Edelbrock Carb Issues. - 03/13/10 05:37 PM
I wonder what the year, cam and compression of that 383 is, and what rear gears and stall are?
Posted By: Anonymous
Post deleted by moparts - 03/13/10 05:41 PM
Posted By: OldHippie
Re: New Edelbrock Carb Issues. - 03/13/10 05:48 PM
I have NEVER had good luck with a Holley Carb. on a street ride. Don't know why but there it is. On the Edelbrock/Carter thing I always regulate fuel pressure down to 5 LBS. and run the thick gasket. This is on the old Weber built AFB 625 CFM carbs. If I recall correctly they did not recommend anything over 6 LBS. Never had any issues with hot restarts with that set-up.
Posted By: 440child
Re: New Edelbrock Carb Issues. - 03/13/10 05:54 PM
Quote:
You can't swing a cat on this board without a 750 Eddy post.
Swing a cat. That's funny. 
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/13/10 07:32 PM
Quote:
I Give You Guys Dyno #s and now 1/4 Mile #s
And Watch , Some will still come on here and say the 1407/1411 is Still The Greatest Thing Since
EPS750 Vs. EPS800 Carburetor & Intake Test - Edelbrock EPS Carburetors: Worth The Time!
EPS 750 vs EPS 800 Comparison
Baseline: 750 Edelbrock Performer, rpm intake; metering rods-.071x.047; jets: .110 primary, .107 secondary. Weather: 97 degrees F., 60 percent humidity, 29.94 barometer. Additional changes: Hoosier slicks 26 x 9
RUN 60 Foot 1⁄8 mile 1⁄4 mile mph notes
1 1.89 8.53 13.68 97.62 after one hour cooldown
2 1.90 8.62 13.79 96.98 hot lap
3 1.89 8.58 13.77 97.23 half-hour cooldown
Test: 800 Edelbrock Performer, rpm intake; metering rods-.071x.047; jets: .113 primary, .107 secondary. Weather: 98 degrees F., 54 percent humidity, 29.94 barometer. Additional changes: Hoosier slicks 26 x 9
Run 60 Foot 1/8 Mile 1/4 Mile MPH Notes
1 1.86 8.40 13.44 99.89 after one hour cooldown
2 1.87 8.46 13.53 99.21 hot lap
3 1.87 8.44 13.48 99.47 half-hour cool down
drop a 750DP on it and run even faster...
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/14/10 01:14 AM
I would have to admit that Edelbrocks tech line must be manned by 16 year olds. The boy I talked to didn't really give me much on a resolution to the problem of Hot start issues. I expected some expertise on their product but didn't get that on the call. I talked to our F/M Carter tech line last week and we aren't getting into the carb business anymore so it's basically Eddy's or Holley's, I think. In the old days, you didn't have to take your new carb apart to get it to work on your stock street motor.At least I never did anyhow.
Posted By: SomeCarGuy
Re: New Edelbrock Carb Issues. - 03/14/10 03:15 AM
I bet if you are running an iron intake that it needs more insulation. I run a thin gasket on an aluminum and have no problems.
I ran a 3/8 spacer and saw no difference. New was fit to use after I took it all off to try the Holley.
I think I would have to buy another rebuild kit just to get one.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/14/10 04:00 AM
I was going to sell that Holley I took off but I'm thinking about just rebuilding it and playing around with that one to do some comparisons with that Edelbrock. All the pro and cons Eddy to Holley carbs has got my curiosity going.
Posted By: MY340
Re: New Edelbrock Carb Issues. - 03/14/10 01:17 PM
Quote:
Quote:
I Give You Guys Dyno #s and now 1/4 Mile #s
And Watch , Some will still come on here and say the 1407/1411 is Still The Greatest Thing Since
EPS750 Vs. EPS800 Carburetor & Intake Test - Edelbrock EPS Carburetors: Worth The Time!
EPS 750 vs EPS 800 Comparison
Baseline: 750 Edelbrock Performer, rpm intake; metering rods-.071x.047; jets: .110 primary, .107 secondary. Weather: 97 degrees F., 60 percent humidity, 29.94 barometer. Additional changes: Hoosier slicks 26 x 9
RUN 60 Foot 1⁄8 mile 1⁄4 mile mph notes
1 1.89 8.53 13.68 97.62 after one hour cooldown
2 1.90 8.62 13.79 96.98 hot lap
3 1.89 8.58 13.77 97.23 half-hour cooldown
Test: 800 Edelbrock Performer, rpm intake; metering rods-.071x.047; jets: .113 primary, .107 secondary. Weather: 98 degrees F., 54 percent humidity, 29.94 barometer. Additional changes: Hoosier slicks 26 x 9
Run 60 Foot 1/8 Mile 1/4 Mile MPH Notes
1 1.86 8.40 13.44 99.89 after one hour cooldown
2 1.87 8.46 13.53 99.21 hot lap
3 1.87 8.44 13.48 99.47 half-hour cool down
drop a 750DP on it and run even faster...
You're comparing a #1411 750cfm Eddy which is basically for a gas mileage stock BB motor with a 800cfm Eddy performance carb??? The #1407 WILL run better than the #1411 as it's set up as the performance 750cfm carb. I think on a warmed up SB motor the #1407 is a good choice for the price.
Apples and oranges comparison. Try again please! 
I do agree with you that Holley will outperform them at the track but not everyone likes to run a Holley. I ran a 750cfm Holley on a stock 72 Demon 340 I once had and it ran great with it.
I've used Holley, Edelbrock, Carter AFB and Thermoquad and each has it's own advantage in some way.
One other thing is the guys running 600-650cfm carbs on their warmed over smallblocks and 383 motors are giving up alot of top end performance if you ask me. I ran a tweaked #9636 Carter AFB 625 on my old Duster 340/508 cam then switched to a big block 73 440 850cfm TQ. When you stomped the gas pedal at 40-50mph the difference was like night and day. Low end response was the same.
Match the carb for your motor & drivetrain plus your use of the vehicle is the best advice I can give.
Posted By: bee1971
Re: New Edelbrock Carb Issues. - 03/14/10 02:17 PM
Quote:
Quote:
Quote:
I Give You Guys Dyno #s and now 1/4 Mile #s
And Watch , Some will still come on here and say the 1407/1411 is Still The Greatest Thing Since
EPS750 Vs. EPS800 Carburetor & Intake Test - Edelbrock EPS Carburetors: Worth The Time!
EPS 750 vs EPS 800 Comparison
Baseline: 750 Edelbrock Performer, rpm intake; metering rods-.071x.047; jets: .110 primary, .107 secondary. Weather: 97 degrees F., 60 percent humidity, 29.94 barometer. Additional changes: Hoosier slicks 26 x 9
RUN 60 Foot 1⁄8 mile 1⁄4 mile mph notes
1 1.89 8.53 13.68 97.62 after one hour cooldown
2 1.90 8.62 13.79 96.98 hot lap
3 1.89 8.58 13.77 97.23 half-hour cooldown
Test: 800 Edelbrock Performer, rpm intake; metering rods-.071x.047; jets: .113 primary, .107 secondary. Weather: 98 degrees F., 54 percent humidity, 29.94 barometer. Additional changes: Hoosier slicks 26 x 9
Run 60 Foot 1/8 Mile 1/4 Mile MPH Notes
1 1.86 8.40 13.44 99.89 after one hour cooldown
2 1.87 8.46 13.53 99.21 hot lap
3 1.87 8.44 13.48 99.47 half-hour cool down
drop a 750DP on it and run even faster...
You're comparing a #1411 750cfm Eddy which is basically for a gas mileage stock BB motor with a 800cfm Eddy performance carb??? The #1407 WILL run better than the #1411 as it's set up as the performance 750cfm carb. I think on a warmed up SB motor the #1407 is a good choice for the price.
Apples and oranges comparison. Try again please! I do agree with you that Holley will outperform them at the track but not everyone likes to run a Holley. I ran a 750cfm Holley on a stock 72 Demon 340 I once had and it ran great with it.
I've used Holley, Edelbrock, Carter AFB and Thermoquad and each has it's own advantage in some way.
One other thing is the guys running 600-650cfm carbs on their warmed over smallblocks and 383 motors are giving up alot of top end performance if you ask me. I ran a tweaked #9636 Carter AFB 625 on my old Duster 340/508 cam then switched to a big block 73 440 850cfm TQ. When you stomped the gas pedal at 40-50mph the difference was like night and day. Low end response was the same.
Match the carb for your motor & drivetrain plus your use of the vehicle is the best advice I can give.
The 1411 in that test - If you would have read the arcticle of course
A) Had the Choke Plate Removed - Shaft
B) Had Richer Metering Rods Installed
The 1411 comes from the Factory 2% Leaner then the 1407 - Yawn
So With him changing the Metering Rods to a Richer State in that Test
Apples to Apples , there both Junk
Eddy 800 is far Superior in every way on a BIG BLOCK
And this whole Topic is involved around BIG BLOCKS , Not Small Blocks
Hence the Initial Post !!!
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/14/10 09:33 PM
Actually I also have the original model Carter AVS that would have come on my 69 Super Bee 383 car that was purchased at a swap meet years ago that is very nice cosmetically but doesn't funtion at all at idle. I've messed around with the floats and seats but nothing else. It was rebuilt when purchased but sat around for about 8 years after that and never installed.
Posted By: SomeCarGuy
Re: New Edelbrock Carb Issues. - 03/15/10 02:10 AM
Does it have the hot idle compensator installed?
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/15/10 03:46 PM
You referring to an idle stop solenoid? This Carter will not idle hot or cold. You have to be pumping it fuel. I thought it was probably plugged with dirt somewhere and the soak during rebuild just didn't get it all for some reason.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/19/10 12:10 AM
I'm going to have to try that pressure regulation idea I think. I'm still struggling with this Edelbrock and hard starting when hot.Darn thing just still acts like it's flooded. I rechecked the fuel pressure and with the line unhooked cranking over I get about 6 psi. I'm thinking of regulating down to 5 or less and see what happens. Trying to rule out the hot soak idea, I've got a phenolic spacer under the carb, wrapped the fuel lines etc...
Still takes cramming the pedal to the floor when it's sat for 15-20minutes to get the car to start. Carb wise I've checked and set the floats and made sure nothing is keeping the check valves from sealing off on the valve seats.Again all this on a brand new carb.
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/19/10 01:34 AM
If you MUST have a Eddy get the 800 thunder. They factory didn't use spacers or insolated fuel lines. Are you sure your choke flap isn't sucking shut, or not working right? I had a 750 Eddy on a 383 way back and it'd suck the flap under WOT. I wired the thing open.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/19/10 01:48 AM
Not the choke flap. It's working right. Been a real mystery to me so far. I am getting real close to rebuilding the Holley I took off just to isolate the carb itself. This sucker is new though.
Posted By: meepmeep70
Re: New Edelbrock Carb Issues. - 03/19/10 05:43 AM
Quote:
The edelbrock AVS 800 is one of the best carbs out , for a mild big block. That 800 will slap a street avenger silly. Selection depends what you are putting it on. auto or manual makes a big difference. A 4 speed with some gearing, install a 750 DP and forget-about-it.
Volaredon- look into a Q jet , they are a bulletproof carb. After working them, actually can be Great all around.
i gotta agree here,i got an 800 thunder series on my 440,and love it,stomp from a stop it launches,never stumble,never heat issue
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/19/10 10:35 AM
I know, I'm hard headed. I'm going to try the pressure regulator today.
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/19/10 02:41 PM
Quote:
Not the choke flap. It's working right. Been a real mystery to me so far. I am getting real close to rebuilding the Holley I took off just to isolate the carb itself. This sucker is new though.
shoot by now yuo could have rebuilt the holley and been rolling... good luck
Posted By: SomeCarGuy
Re: New Edelbrock Carb Issues. - 03/20/10 02:24 AM
Quote:
You referring to an idle stop solenoid? This Carter will not idle hot or cold. You have to be pumping it fuel. I thought it was probably plugged with dirt somewhere and the soak during rebuild just didn't get it all for some reason.
No, look on an exploded view. The compensator is a little air valve that opens when the temp comes up, a controlled vacum leak. Sits between the secondaries.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/20/10 10:31 AM
Not sure. I'll check on that compensator.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/21/10 10:13 AM
Found some things out yesterday with my hard start when my 69 Super Bee 383 has sat for 15-20 minutes after running for awhile. With the Edelbrock (Brand new out of the box) I have to put the pedal to the floor and grind to get it the car to start. I rechecked the fuel pressure and saw 6psi. I hooked up a regulator and adjusted to 4.5 psi. Same result. No start Hot. I went ahead and checked the motor compression, just because I hadn't in a long time, and that was good in all cylinders. At that point I cried UNCLE and put my Holley back on paying close attention to starting hot and it does crank over a few times but starts without planting your foot and grinding away. This brings me to My next theory, Heat riser valve stuck partially shut. The Eddy bowls are hung on the side of the carb, the Holley front to back more away from the crossover of the intake. My heatriser valve assy appears to be gone except were the flapper arm rod would be sticking out of the exhaust manifold , thats still in place and stuck, can't move it.
Sounds like it could be time to pull that loose and make sure. The exhaust has no crossover as well so I may be able just to check the amount of exhaust I get but the valve may well not be shut all the way cause when hot I don't notice any issues with how the car runs once it gets going.
Posted By: JohnRR
Re: New Edelbrock Carb Issues. - 03/21/10 01:01 PM
Yes Tim you are hard headed , it's that 1411 carb , it's a PIECE OF CRAP , PERIOD , end of story. Look for the carb test fast68plymouth did some years ago and he specifically had horrible results with an ebrock preformer 750.
The heat riser is making the problem 2 fold, you have the heat passage open under the intake ... i assume ... and the new fuel formulation getting boiled out of the carb. insulating the crab from the intake don't matter , heat RISES , the heat from the open passage is rising up thru the carb and it's evaporating the fuel.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/21/10 02:18 PM
Actually I have a 600 Eddy now. I took that 750 back to O Reillys but I'm getting the same thing with this 600.Two new carbs with same issue sounds unlikely and the heat riser flapper not being open all the way could explain why the Holley works and the Eddy's don't. If that's open, I'm taking the 600 back for either a refund or a new Holley. Or just rebuild my old Holley and move on.
Posted By: Junky
Re: New Edelbrock Carb Issues. - 03/21/10 05:10 PM
I tell ya, the 3310 Holley 750 carb will do you way better than that 750 Edelbrock. I ran that Edelbrock 750 for several months, tuning, tuning, tuning. Hard starts too. Switched to the 3310. Night and day! No hard starts! I love my 3310 Holley 750!
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/21/10 08:52 PM
Yep. I replaced some leaky gaskets on my Holley and am now off and running. Heat rizer valve open so that is that. My 600 Eddy is in the box to go back. It's only 2 weeks old.Allot of headaches trying to put a new one on. The first 750 Eddy I had about a month ago Idled like crap and had the hot start issue. This 600 just has the hard start. Took my new age Carter AFB off my 68 bee and ran it on the 69 also. Redid the Holley I had on it to start with and am now back and running with no hot start issues. That'll be my last attempt at messing with an Eddy. I just hope after the 2nd try they'll either give me my money back or a new Holley. This Eddy is a boat anchor.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/22/10 11:01 PM
Thanks for all the input.After putting my old Holley back on I took that Edelbrock 1406 back today and got my money back. No more of those for me. Since there are no more Carters available I guess, Holley here I come, in the future.
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/22/10 11:37 PM
So how's the holley run?
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/23/10 12:09 AM
Holley runs great. No problems.
List # is 4749-3. What CFM is that? I looked it up in my Holley carb book but it didn't list that model. Thanks.
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/23/10 12:57 AM
sure it's not HLY-0-4779C
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/23/10 02:04 AM
List 4749 is on the air horn. I do know it's a fairly old carb.
Posted By: bee1971
Re: New Edelbrock Carb Issues. - 03/23/10 03:04 AM
Quote:
Holley runs great. No problems.
List # is 4749-3. What CFM is that? I looked it up in my Holley carb book but it didn't list that model. Thanks.
4749 0 4160 Designed for 1967-70 Chrysler, 383 & 440 engs. Vacuum secondaries, divorced choke, single pump, 600 c.f.m.
Scott
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/23/10 10:34 AM
Quote:
4749 0 4160 Designed for 1967-70 Chrysler, 383 & 440 engs. Vacuum secondaries, divorced choke, single pump, 600 c.f.m.
Scott
Thanks Scott!!
I needs to gets me one of them holley gas holes fer my 440
I just got my first one its a spredbore 650 manual 2ndarys double pumper
is the 3310 the one with the duel feed line??
so that carb is a replacement for a mopar or would it have come on a mopar stock
I guess I gots lot to lean on these gas holes
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/24/10 10:29 AM
Some of the 70's had a stock 4BBL but most were Carter AVS,Thermoquads or AFB's. I used to have a 70 Roadrunner that had a stock Holley on it. This 69 Super Bee a Carter AVS.
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/24/10 11:13 AM
My 70 383 Charger S/E 4 speed had a holley stock. I think they were rated at 580?
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/25/10 12:36 AM
I'm thinking of getting a new Holley now after all the issues with the Edelbrock. I've taken that back to the parts store. Whats the best all round Holley carb out there for a stock 383 HP car? I'm thinking Double pumper. I've had good luck with those in the past.
Posted By: Mr.Yuck
Re: New Edelbrock Carb Issues. - 03/25/10 12:38 AM
Stock 383 should like an 650dp
Posted By: Junky
Re: New Edelbrock Carb Issues. - 03/25/10 01:08 AM
Holley 670 Street Avenger for a stock 383!!!
Posted By: SomeCarGuy
Re: New Edelbrock Carb Issues. - 03/25/10 02:07 AM
Why not a 750?
Posted By: joedust451
Re: New Edelbrock Carb Issues. - 03/25/10 06:43 AM
750 3310, 750 3310, 750 3310, 750 3310!!!!!!!!!!!!
I'll say it again! 750 3310 & BE DONE!!!!!
Posted By: actionange
Re: New Edelbrock Carb Issues. - 03/25/10 10:11 AM
Quote:
Holleys are just a little simpler and more crude in terms of operation over the Carter design. If they work for you best, great. It doesnt matter who made the carb. You can make the same power when the carb, any carb, is properly set and matched to the combo.
I'm using 2 Edelbrock 750's because the Nostalgia Super Stock rules require me to. Never have hard start or hesitation situations. They've always worked great.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/25/10 10:44 AM
I never figured out why but both the new Eddy 750 and 600 I bought had hard strat issues when hot. To pinpoint I:
1). Put a 1/2 inch phenolic spacer under the carb and wrapped the new steel fuel line I ran from the pump to the carb. As directed by Eddy's techs.
2).I checked the heat riser valve to make sure that was open.
3).I did pop the top on the 600 and readjusted the float bowls to Eddy's specs. They were out of spec.
4).I ran fuel line hose only from the pump to the carb to totally get rid of the steel. This an attempt to put everything back the way it was before I got the Eddy 750.
5). Took my Carter AFB off my 68 Bee and put it on my 69. Issue went away.No hard start when hot.
6). Put a fuel pressure regulator on with gage and set to 4.5 psi with the Eddy 600 back on. Still no hot start.
7). Rebuilt the old 600 Holley that I took off my 69 to replace with the Eddy 750. Have ran the car now for almost a week. No hard start problems.
I only gave up on the Eddy 600 after almost getting stuck somewhere and not being able to get the car started. I had a hard time with the fact that 2 new carbs were doing the same thing. But.... 2 old carbs work on this car. 2 different brands also. After all this I'm going with a Holley.
Posted By: HitIt
Re: New Edelbrock Carb Issues. - 03/25/10 03:35 PM
Have you tried the Edelbrock #1407 750?
...kidding
Posted By: Junky
Re: New Edelbrock Carb Issues. - 03/25/10 03:43 PM
Quote:
Why not a 750?
You said stock.
Modified I'd go with the 3310 Holley 750!
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/25/10 04:23 PM
Na. I've had enough of the Edelbrock carbs. I'll pass on that.
Posted By: joedust451
Re: New Edelbrock Carb Issues. - 03/25/10 05:22 PM
Quote:
Quote:
Why not a 750?
You said stock.
Modified I'd go with the 3310 Holley 750!
I've run 3310s on mild 360s, it'll work great on a 383, even a stock 383. There are quit a few that had issues with the street avanger, its been all over these boards, the 3310 is tried & true, the only other T&True is the 600 1850, be he will be much happier with the 750 on that 383 IMO, but to each his own i guess.
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/25/10 08:26 PM
The 4160 series 600 on it now seems to work pretty well. I was just thinking of going for one a little bigger.
Posted By: joedust451
Re: New Edelbrock Carb Issues. - 03/25/10 08:55 PM
Quote:
The 4160 series 600 on it now seems to work pretty well. I was just thinking of going for one a little bigger.
You will be impressed up-grating to the 3310 over the 600 1850 on that 383, not that the 600 won't work, but you'll get power all around with the 750. Obviously you must have noticed an improvement with the larger Eddy carb despite its issues, thats why your wanting more CFM. If you go on e-bay, you can find a bunch of good used 3310 750s for cheap, I got mine for 113.00 to my door, & it was hardly used, its alot cheaper going this way then buying new.
buying used can be a gamble also
carbs on ebay
not saying..just saying
you know what you gots when its new and better recorse if defective
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/26/10 08:58 AM
I see what you mean about buying used but that's a 50/50 proposition. You take your chances on a carb. Like the guy that used to have my 69 bought a model # correct Carter from a swap meet and was told it was ready to go. NOT.What kind of money is a 3310 750 new? I agree, even with the Eddy's hot start issues that jump to the 750 made this 383 haul A--. That's why I'm considering a new carb still to get more CFM.
Posted By: Frederick
Re: New Edelbrock Carb Issues. - 03/26/10 11:45 AM
Here's an article about how to get rid of the Edelbrock stumble.
http://webrodder.com/article.php?AID=522&SID=60
Posted By: TimS
Re: New Edelbrock Carb Issues. - 03/26/10 12:37 PM
That Holley 3310 series 750 appears to be comparable cost wise to the Edelbrocks in the Jegs catalog.