Anybody running an Edelbrock 750 on their big block?

Posted By: DusterKrazy

Anybody running an Edelbrock 750 on their big block? - 03/22/11 03:27 AM

I have a '65 Chrysler Newport Coupe with a mild 400. It has 452 heads, an older .470 lift hughes cam with matching valve springs, a double roller timing chain along with a high volume oil pump. It has a '69 383 intake along with a 750 Edelbrock as far as induction goes.
I am actually impressed with how it runs-especially for a big car!

Anyways, it does have single exhaust which is no doubt choking it back a little bit. That will go away when the funds allow. It has been converted to electronic ignition and uses the orange box.

I was wondering if anybody was using the Edelbrock 750? Mine needs to be tuned on for sure but I was looking for a good place to start with it. Jetting and things of that sort to make the best of what I have. I also have an Edelbrock performer 383 intake that will make it's way on there soon.

Also, any good suggestions for an alternator upgrade?? It does not have to look correct. When the carb's idle is dropped down to where it needs to be, the lights are dim at night.

Posted By: ahy

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 04:50 AM

As far as the carb goes, I've never run it but I think you'll get lots of comments/advice.

For the alternator, you have several choices. Is it equipped with AC? I'll assume yes. That limits choices somewhat. The MOPAR alternator was never the best at idle. Dim lights is a common problem. The later "square back" alternator was better than the "roundback' of the mid sixties. The easiest/cheapest upgrade is a later model "square back" that should bolt in your existing brackets. The mid/late 70's version was rated at 78 amps vs about 50 max in the 60's. Two choices. Go to your autoparts store and order a 78 amp alternator for - say - a 1978 Diplomat or order a Powermaster alternator with similar rating from Mancini or Summit or Bouchillon. The alternator will bolt in but requires electrical upgrades to be reliable. The OE harness and especially bulkhead connector cannot handle the higher load. A wire of at least 10 guage, preferably 8 from the alternator to the fender relay will fix this. Install a length of 12 or 14 guage fusible link in the charge wire. With this modification the OE ammeter will not work and you will have to add a voltmeter or convert your existing ammeter to a volt meter.

With the alternator upgrade get a new regulator. If you keep the single field type, make sure its an electronic replacement (common at part stores) and ground one terminal of the newer dual field alternator. Or upgrade to the dual field regulator.

With quality problems on rebuilt alternators recently, I'd go the Powermaster route personally.

Posted By: StealthWedge67

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 04:56 AM

I'd start at Edelbrock's website. They have a pretty solid tuning chart that will give you a good baseline of jet vs. rod combinations. read and understand all of their tuning advice, and don't make any changes until you feel confident that you understand what the change is trying to accomplish. Edelbrock does a pretty good job of supporting their customers, and their owners manual is a good read.

Unfortunately, you won't find a whole lot of positive reactions to the Eddy 750 on this board. Many, including myself, have had a bear of a time with them. I think most of these, however, were with pretty serious street / strip type efforts. If its a stock type street motor with a mild camshaft, you'll likely have good luck with it.

Great to hear you're enjoying your car

Posted By: gdonovan

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 10:38 AM

My GTX ran regular 12.6 with one through the exhaust with slicks and 3.23 gears.

Posted By: Kam*Kuda

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 12:35 PM

I had an edelbrock on a 440 and it ran well. I have had a demon, holley and eddy carb on the engine, All were able to be tuned to work well.

Posted By: Mike P

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 12:41 PM

I�ve been building AFB/AVS style carburators since the late 60s and they�re one of my favourites. Unfortunately finding OE AFB/AVS in the wrecking yards is a thing of the past and for the last several years I�ve had to buy NIB units on a few occasions. My experience is that quality control generally SUCKS....either that or it�s just my own bad luck.

I�m running a 750 on my stock 76 440. I put in on right out of the box and what a PIG. When I pulled the step rods what I found was that one of them had not been machined. Nothing like putting a cork in one of the jets to kill performance.

That being said it�s still a good design once all the bugs are worked out. I think you will probably find it�s going to be rich right out of the box. You will probably be able to correct this with a rod change and not have to change jets. You will also probably want to use a bit lighter spring under the pistons to delay the step rod lifting. Lastly you may find that you have to set the floats a bit lower to prevent heatsoak boil over if you live in a hot climate or high altitude.

Attached picture 6543155-steprods.JPG

Posted By: Mr.Yuck

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 01:36 PM

While I'm no fan of those carbs it should work fine for what you have. What you need to do is go buy a good timing light and vacuum gauge before you do anything. As mentioned go to the website and download any information you can on tuning tips. Usually I like to start by turning the mixtures screws in all the way then back out 1 1/4 turns. Turn them in/out until you get the best vacuum signal. Then I'd race the idle up to 2200-2400 and set your timing in full (no vac advance), 38* for your car should work. Then turn the idle back down to 800-1000 and check for best signal again. If you are having a stumble from cruise to WOT then you'll have to start messing w/ the rods. Good luck.

Posted By: DartGTS

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 02:41 PM

Hello:
Well I guess I may be in the minority here, but i've used Edelbrock carbs since way back when they were Carters.
On my 383 in the GTS when not serious about OEM stock I run an EDDY 750 on a Edelbrock DP4B intake. It really wakes up the 383. I have found that on new carbs straight out of the box they tend to run a bit rich. I leave the jets alone and go one step down on the metering rod and spring. That works well for me in street cars. (On my race carb I had a Holley 1050 on Team G (ported manifold) that gave me fits.)
I suggest you check out the Edelbrock site lots of info there and perhaps purchase one of their calibration kits.

Maynard

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 03:08 PM

Quote:

As far as the carb goes, I've never run it but I think you'll get lots of comments/advice.

For the alternator, you have several choices. Is it equipped with AC? I'll assume yes. That limits choices somewhat. The MOPAR alternator was never the best at idle. Dim lights is a common problem. The later "square back" alternator was better than the "roundback' of the mid sixties. The easiest/cheapest upgrade is a later model "square back" that should bolt in your existing brackets. The mid/late 70's version was rated at 78 amps vs about 50 max in the 60's. Two choices. Go to your autoparts store and order a 78 amp alternator for - say - a 1978 Diplomat or order a Powermaster alternator with similar rating from Mancini or Summit or Bouchillon. The alternator will bolt in but requires electrical upgrades to be reliable. The OE harness and especially bulkhead connector cannot handle the higher load. A wire of at least 10 guage, preferably 8 from the alternator to the fender relay will fix this. Install a length of 12 or 14 guage fusible link in the charge wire. With this modification the OE ammeter will not work and you will have to add a voltmeter or convert your existing ammeter to a volt meter.

With the alternator upgrade get a new regulator. If you keep the single field type, make sure its an electronic replacement (common at part stores) and ground one terminal of the newer dual field alternator. Or upgrade to the dual field regulator.

With quality problems on rebuilt alternators recently, I'd go the Powermaster route personally.

Thanks!
Lots of good advice here!
The previous owner had bought the car from an estate sale of a Chrysler executive over 20 years ago and it was special ordered. It does not have air, which I believe is strange for being an ordered car.

I have located an alternator from a late 80's Dodge truck. It's not the Denso and it's fairly big. What are the thoughts on these? I believe it's application is from a '87 Ram 4x4.

Posted By: moper

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 05:12 PM

The other thing to check is there are two Edelbrock Performer 750s. One is a leaned out (permanently) replacement for the mild 454/460 trucks - List #1407. One is a true performance 750 with the performance air bleeds - List #1411. No carb should be bolt on and go. So I would buy the strip kit and expect to tune it. Especially with a non-stock camshaft.

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 07:56 PM

I will look into the the strip kit. I noticed the rod for the accelerator pump is in the highest position (top hole).
It does tend to bor slightly..will this help?
The carb is the 1407.

Posted By: RapidRobert

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 08:39 PM

Quote:

The other thing to check is there are two Edelbrock Performer 750s. One is a leaned out (permanently) replacement for the mild 454/460 trucks - List #1407. One is a true performance 750 with the performance air bleeds - List #1411.

been following all the eddy 750 complaints on here & never knew there were two of them

. I wonder if the 1407 is the one drawing all the complaints

Posted By: 1968RR

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 10:33 PM

If you're going to try and tune the carb, don't forget the step-up springs. They can make a big difference in how lean/rich it runs. Edelbrocks (in my opinion) don't usually require too much tuning out of the box, but Holleys take a little bit more tinkering to get right. Since you've already decided that you'd like to tinker, have you thought about switching to a Holley (I'm NOT trying to start a Edelbrock vs. Holley

here, I'm just making a suggestion). I've had luck with both types of carbs. Good luck.

Posted By: Rollin Hand

Re: Anybody running an Edelbrock 750 on their big block? - 03/22/11 10:58 PM

Search the edelbrock site the 1407 is the performance carb the 1411 is the one calibrated for the 454, and says it is 2% leaner. There appears to be a typo on there site where they show the 1407 where they should show the 1411.

Posted By: ahy

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 12:39 AM

Quote:

Quote:

As far as the carb goes, I've never run it but I think you'll get lots of comments/advice.

For the alternator, you have several choices. Is it equipped with AC? I'll assume yes. That limits choices somewhat. The MOPAR alternator was never the best at idle. Dim lights is a common problem. The later "square back" alternator was better than the "roundback' of the mid sixties. The easiest/cheapest upgrade is a later model "square back" that should bolt in your existing brackets. The mid/late 70's version was rated at 78 amps vs about 50 max in the 60's. Two choices. Go to your autoparts store and order a 78 amp alternator for - say - a 1978 Diplomat or order a Powermaster alternator with similar rating from Mancini or Summit or Bouchillon. The alternator will bolt in but requires electrical upgrades to be reliable. The OE harness and especially bulkhead connector cannot handle the higher load. A wire of at least 10 guage, preferably 8 from the alternator to the fender relay will fix this. Install a length of 12 or 14 guage fusible link in the charge wire. With this modification the OE ammeter will not work and you will have to add a voltmeter or convert your existing ammeter to a volt meter.

With the alternator upgrade get a new regulator. If you keep the single field type, make sure its an electronic replacement (common at part stores) and ground one terminal of the newer dual field alternator. Or upgrade to the dual field regulator.

With quality problems on rebuilt alternators recently, I'd go the Powermaster route personally.

Thanks!
Lots of good advice here!
The previous owner had bought the car from an estate sale of a Chrysler executive over 20 years ago and it was special ordered. It does not have air, which I believe is strange for being an ordered car.

I have located an alternator from a late 80's Dodge truck. It's not the Denso and it's fairly big. What are the thoughts on these? I believe it's application is from a '87 Ram 4x4.

On the alternator, since you are't dealing with AC brackets, you have lots of choices. MOPAR used several alternators other than Denso in the 80's. I believe the Denso was the best.

The best retrofit solution is a 120 A Denso. It has lots of idle output. You can get the complete kit with brackets from Mancini (Andy F designed). The mid/late 70's 78 A square back from a parts store is the most budget friendly way to tackle this. With either, wiring upgrades mentioned are needed.

Posted By: StealthWedge67

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 01:48 AM

Quote:

The other thing to check is there are two Edelbrock Performer 750s. One is a leaned out (permanently) replacement for the mild 454/460 trucks - List #1407. One is a true performance 750 with the performance air bleeds - List #1411. No carb should be bolt on and go. So I would buy the strip kit and expect to tune it. Especially with a non-stock camshaft.

Posted By: 6PACMAC

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 03:02 AM

I've run carter comp series 750 afb's years ago. 11.50's out of the box and no tuning in my 67 gtx. I'm sure if i ever get around to putting the "tune" to it, It may go a tenth or two faster.

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 05:19 AM

Sounds like I can do some stuff with it, so I may just try that.
I did pull a couple of the plugs and it definetly indicated that it is running a little on the rich side.

Is Demon Sizzler still building Thermoquads??

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 05:50 AM

Quote:

If you're going to try and tune the carb, don't forget the step-up springs. They can make a big difference in how lean/rich it runs. Edelbrocks (in my opinion) don't usually require too much tuning out of the box, but Holleys take a little bit more tinkering to get right. Since you've already decided that you'd like to tinker, have you thought about switching to a Holley (I'm NOT trying to start a Edelbrock vs. Holley here, I'm just making a suggestion). I've had luck with both types of carbs. Good luck.

I have a Holley that is good but I am afraid the 600 is way to small. I already have the Edelbrock and it's not to old...

Posted By: scratchnfotraction

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 01:29 PM

before you swap alt,get one of the newer solid state elect voltage regulators to replace the old points type you have with the round back alt with one feild wire

this will help the dim lights at idle and works way better than the points style VR

best 12$ upgrade I did to the 68Dart I had

you can run a square back alt by grounding the 2nd feild wire and hook the other up for an up grade, the one from the truck should bolt right in place of yours

you can use an external regulater denso 120 amp(late 80s cars/trucks/vans) on stock non a/c pullys,has the double grooved belt pully on it and works on the stock external VR for a good upgrade

i have one on my 440 in the sig pic on stock brackets,you just crimp on eyeloops for the 2 feild wires and bolt it on

IMHO,I would do the 12$ replacement VR first and see if that fixes it enuff for you,before changing the stock alt for another

x2 on a timeing light and vac gauge to start tuneing on the carb,all 3 work together to dial it in

good luck

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 03:36 PM

Quote:

before you swap alt,get one of the newer solid state elect voltage regulators to replace the old points type you have with the round back alt with one feild wire

this will help the dim lights at idle and works way better than the points style VR

best 12$ upgrade I did to the 68Dart I had

you can run a square back alt by grounding the 2nd feild wire and hook the other up for an up grade, the one from the truck should bolt right in place of yours

you can use an external regulater denso 120 amp(late 80s cars/trucks/vans) on stock non a/c pullys,has the double grooved belt pully on it and works on the stock external VR for a good upgrade

i have one on my 440 in the sig pic on stock brackets,you just crimp on eyeloops for the 2 feild wires and bolt it on

IMHO,I would do the 12$ replacement VR first and see if that fixes it enuff for you,before changing the stock alt for another

x2 on a timeing light and vac gauge to start tuneing on the carb,all 3 work together to dial it in

good luck

Thanks..what year regulator would I need? Anything above say a '71??

Posted By: Dean_Kuzluzski

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 03:37 PM

Quote:

If you're going to try and tune the carb, don't forget the step-up springs. They can make a big difference in how lean/rich it runs.

This is probably the biggest oversight by many. It's the equivalent of the Holley powervalve.

I ran a 750 Comp. Series Carter for 14 years on two different cars. A great street/strip carb that is fuel efficient too.

The metering rod plungers would occasionally seize in their bores and it would idle rich but other than that never had to do anything after tuning other than change a needle/seat one time. Jets are easy to change, no fuel spill, metering rods change in seconds. Pump squirt selection and adjustment is limited though.

Good for mild-to-warm street driver, street/strip cars.

My 69 RR got 14 mpg and ran 13.70's at 103 mph on street tires with a 383, single-plane, 284/484 MP cam, headers, 4 speed, 3.91, 28" tire.

Posted By: 1969RR

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 04:20 PM

DusterCrazy, I still have the tuning CD that came with my carb. I'll mail it to you if it would be any help. I never watched it, so I couldn't speak for how detailed it is. Let me know, I'll drop it in the mail. Take care, Jeff

Posted By: moper

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 05:22 PM

To the best of my knowledge. This both backwards and innaccurate. The 1407 is a manual choke version that is set up a little richer out of the box. The 1411 has an electric choke and is set up a little leaner. Niether is "Permanantly" leaned out. The jets, rods, and springs can be set up in either carb however you like.

Backwards, yes. Sorry about that...lol
I referenced the website and read the picture wrong.
But, in terms of the leaner... I had both to look at and the "leaner" is not metering rods and jets, but the emulsion bleeds and non-tunable passages that make them leaner. The reason they say not to use them on higher performance engines (well, with RPM or Torker II intakes) is because you can't simply swop rods, jets, or springs and properly richen the entire system. They come with leaner tuning parts in them to work with the other non-adjustable circuits that are calibrated leaner.

Posted By: bboogieart

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 05:29 PM

Quote,
Thanks..what year regulator would I need? Anything above say a '71??

Nope it is a direct replacement for the regulator you have. It is just electronic instead of points, there fore more accurate. They are for sale right here in the classifieds. Even look like the original, and install the same.

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 05:31 PM

Quote:

Quote,
Thanks..what year regulator would I need? Anything above say a '71??

Nope it is a direct replacement for the regulator you have. It is just electronic instead of points, there fore more accurate. They are for sale right here in the classifieds. Even look like the original, and install the same.

Cool..because the '65's look way different!

(when comparing them to the newer units)...

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 05:34 PM

Quote:

Quote:

If you're going to try and tune the carb, don't forget the step-up springs. They can make a big difference in how lean/rich it runs.

This is probably the biggest oversight by many. It's the equivalent of the Holley powervalve.

I ran a 750 Comp. Series Carter for 14 years on two different cars. A great street/strip carb that is fuel efficient too.

The metering rod plungers would occasionally seize in their bores and it would idle rich but other than that never had to do anything after tuning other than change a needle/seat one time. Jets are easy to change, no fuel spill, metering rods change in seconds. Pump squirt selection and adjustment is limited though.

Good for mild-to-warm street driver, street/strip cars.

My 69 RR got 14 mpg and ran 13.70's at 103 mph on street tires with a 383, single-plane, 284/484 MP cam, headers, 4 speed, 3.91, 28" tire.

Sounds great. Sounds like I need to get the air fuel mixture correct then jet it a hair richer to compensate for the larger than stock camshaft ( not radical though). Then play with setup springs.

Posted By: bboogieart

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 05:50 PM

Cool..because the '65's look way different!

(when comparing them to the newer units)...

P.M. sent

Posted By: Dean_Kuzluzski

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 09:00 PM

Quote:

Sounds great. Sounds like I need to get the air fuel mixture correct then jet it a hair richer to compensate for the larger than stock camshaft ( not radical though). Then play with setup springs.

Not telling you what to do............but the metering rod springs were the first thing I did to get driveability dialed in. The weakest spring that idle vacuum would pull shut gave me the earliest enrichment when the throttle opened and vacuum dropped. With a narrow LSA, early mech advance and early power enrichment help make those cams tolerable.

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 11:23 PM

Quote:

Quote:

Sounds great. Sounds like I need to get the air fuel mixture correct then jet it a hair richer to compensate for the larger than stock camshaft ( not radical though). Then play with setup springs.

Not telling you what to do............but the metering rod springs were the first thing I did to get driveability dialed in. The weakest spring that idle vacuum would pull shut gave me the earliest enrichment when the throttle opened and vacuum dropped. With a narrow LSA, early mech advance and early power enrichment help make those cams tolerable.

Do you remember which setup springs you went with? Or are there several of these things?

Posted By: joedust451

Re: Anybody running an Edelbrock 750 on their big block? - 03/23/11 11:32 PM

Quote:

Quote:

The other thing to check is there are two Edelbrock Performer 750s. One is a leaned out (permanently) replacement for the mild 454/460 trucks - List #1407. One is a true performance 750 with the performance air bleeds - List #1411. No carb should be bolt on and go. So I would buy the strip kit and expect to tune it. Especially with a non-stock camshaft.

To the best of my knowledge. This both backwards and innaccurate. The 1407 is a manual choke version that is set up a little richer out of the box. The 1411 has an electric choke and is set up a little leaner. Niether is "Permanantly" leaned out. The jets, rods, and springs can be set up in either carb however you like.

This is "currect", but IMO there both "JUNK" period, thats my

, i'll say no more

Posted By: Dean_Kuzluzski

Re: Anybody running an Edelbrock 750 on their big block? - 03/24/11 02:12 AM

Quote:

Do you remember which setup springs you went with? Or are there several of these things?

Not specifically, they were just the lightest ones available. These were the Carter products, Edelbrock probably sells some too. Just buy a few sets/pair and try them out. Kind of fun to play around with.

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/24/11 02:23 AM

Quote:

Quote:

Do you remember which setup springs you went with? Or are there several of these things?

Not specifically, they were just the lightest ones available. These were the Carter products, Edelbrock probably sells some too. Just buy a few sets/pair and try them out. Kind of fun to play around with.

Intresting...what effect did the lighter ones have?

Posted By: DartGTS

Re: Anybody running an Edelbrock 750 on their big block? - 03/24/11 04:25 AM

Hello:
Buy the Kit from Edelbrock and you'll have all the springs, rods and jets you'll need.
If you really want to get into things also buy the book
"How to Rebuild and Modify Carter/Edelbrock Carburetors" $24.95
Car Tech Books
Type in >carburetors< in their search box.
Then you to can be an expert..LOL
Good Luck
Maynard

Posted By: Dean_Kuzluzski

Re: Anybody running an Edelbrock 750 on their big block? - 03/24/11 01:58 PM

Quote:

Intresting...what effect did the lighter ones have?

As I said above............."The weakest spring that idle vacuum would pull shut gave me the earliest enrichment when the throttle opened and vacuum dropped."

Basically, this fills the void of lean air/fuel mixture when you open the throttle and it takes over when the accelerator pump squirt is consumed. It's a tuner thing. A lost art, since many like to assume a carb should work on any given combo outta the box. Again, Holley has its "power valve" and the Carter/E-brock has it metering rod/plunger/spring device to do the same thing.

So, instead of listening to the guy that'll tell you to "just put a Holley on it", spend some time to know your AFB/AVS. Same goes for that modified mech. ignition advance curve I mentioned above.........the air/fuel and spark curve have to "play nice together" to make the carb look good.

Posted By: bee1971

Re: Anybody running an Edelbrock 750 on their big block? - 03/24/11 04:43 PM

Posted By: Dean_Kuzluzski

Re: Anybody running an Edelbrock 750 on their big block? - 03/24/11 06:06 PM

Quote:

Soooo, what's that mean?

Are you poo-pooing the idea of spending around $20 or less to tune a carb before throwing down several hundred $$ for a Holley?

Others, see attached for the set of metering rod springs mentioned.......

http://www.edelbrock.com/automotive_new/mc/carbs_acc/access_calibrate.shtml

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/24/11 07:53 PM

I'm a jobless full time college student. If anyone wants to buy me a new carb..have at it

To everyone else, thanks for the help.

Posted By: RapidRobert

Re: Anybody running an Edelbrock 750 on their big block? - 03/24/11 08:07 PM

Yes I would get the electronic replacement VR, it's a far better setup than the problematic OE electromechanical one and Mrrandy on here sells an electronic converted one w a black cover that looks OE for $27 to your door and your parts house has an electronic version, a "Wells" brand either a VR706 or VR607 (I think VR706) that bolts on/fits OK but does not look OE & if you have converted to a later higher amp 2 field terminal alt (excellent plan) you can just ground 1 alt field terminal and what I did was to trim the sides of a '71 up VR and it will then fit neatly into the squarish recess in the firewall where the OE electromechanical VR once resided

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/24/11 09:53 PM

The voltage regulator has been replaced and it's a small silver unit. I am guessing that it is already the electronic one??

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/24/11 09:58 PM

Quote:

The voltage regulator has been replaced and it's a small silver unit. I am guessing that it is already the electronic one??

I will convert it to the mini starter as well.

Posted By: RapidRobert

Re: Anybody running an Edelbrock 750 on their big block? - 03/24/11 10:46 PM

If the underside of it has wire wound resistors then it is the old electromechanical style

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/25/11 01:17 AM

Quote:

If the underside of it has wire wound resistors then it is the old electromechanical style

I shall investigate further

Posted By: bee1971

Re: Anybody running an Edelbrock 750 on their big block? - 03/25/11 07:41 AM

Quote:

Quote:

Soooo, what's that mean?

Are you poo-pooing the idea of spending around $20 or less to tune a carb before throwing down several hundred $$ for a Holley?

Others, see attached for the set of metering rod springs mentioned.......

http://www.edelbrock.com/automotive_new/mc/carbs_acc/access_calibrate.shtml

Your Joking , Correct ???

First Thing , I Never Mentioned Holley

Second Thing , I Could Tune A Edelbrock , Carter AVS All Day / Any Day - I Love The AVS Series Actually , Original And New - I Take The Original Factory Carter Avs,s and pull off the metering rod covers and make my own flat metering rod covers and tune them with the Edelbrock Metering Rods / Springs And Jets (Finding the Carter AVS Strip Kits , Three step metering rods and tall primary jets is next to impossible)

ANYWAYS with that said

The 1407 / 1411 Performer Series Is Nothing More Then A Overpriced Parts Carb - Actually Thats Beeing To Nice , How many beer cans could we make out of a 1407 Carb ??? That would Bee more productive and definetly a wiser choice

Bottom Line - You cant tune a internal design flaw with springs

That series , 1407 / 1411 is the most and WORSE talked about carb on Moparts.com - Probably the world wide web for that matter

For every 1 positive there is like 100 negative posts about those /1407 1411 series

Carry On

Posted By: Dean_Kuzluzski

Re: Anybody running an Edelbrock 750 on their big block? - 03/25/11 01:50 PM

Hey, no problem here. Just didn't know what you were implying.

I never said the metering rod springs were the end all tuning fix that is solely needed. It just seems to get overlooked when people are struggling with a off-idle bog and they try jetting, pump squirt and everything else.

Just trying to help.

Everyone is entitled to an opinion, some just don't share it so well.

Posted By: joedust451

Re: Anybody running an Edelbrock 750 on their big block? - 03/25/11 04:57 PM

Quote:

Quote:

Quote:

Soooo, what's that mean?

Are you poo-pooing the idea of spending around $20 or less to tune a carb before throwing down several hundred $$ for a Holley?

Others, see attached for the set of metering rod springs mentioned.......

http://www.edelbrock.com/automotive_new/mc/carbs_acc/access_calibrate.shtml

Your Joking , Correct ???

First Thing , I Never Mentioned Holley

Second Thing , I Could Tune A Edelbrock , Carter AVS All Day / Any Day - I Love The AVS Series Actually , Original And New - I Take The Original Factory Carter Avs,s and pull off the metering rod covers and make my own flat metering rod covers and tune them with the Edelbrock Metering Rods / Springs And Jets (Finding the Carter AVS Strip Kits , Three step metering rods and tall primary jets is next to impossible)

ANYWAYS with that said

The 1407 / 1411 Performer Series Is Nothing More Then A Overpriced Parts Carb - Actually Thats Beeing To Nice , How many beer cans could we make out of a 1407 Carb ??? That would Bee more productive and definetly a wiser choice

Bottom Line - You cant tune a internal design flaw with springs

That series , 1407 / 1411 is the most and WORSE talked about carb on Moparts.com - Probably the world wide web for that matter

For every 1 positive there is like 100 negative posts about those /1407 1411 series

Carry On

well said, The older original Carter carbs were some of the best, the metering was well thought out, The 1407/1411 are Pieces of S, They took a good carb design & screwed it up, I'll take a Holley all day long over those things, I know i said i wouldn't make anymore comments, Oh well

Posted By: STROKIE

Re: Anybody running an Edelbrock 750 on their big block? - 03/26/11 12:32 AM

The question is...
Anybody running an Edelbrock 750 on their big block?
We don't want to talk about holley...
I use Edelbrock 750 on my 451 and really work GOOD

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/26/11 12:43 AM

Quote:

The question is...
Anybody running an Edelbrock 750 on their big block?
We don't want to talk about holley...
I use Edelbrock 750 on my 451 and really work GOOD

Can you tell me some of the things that you have done to it??

Posted By: STROKIE

Re: Anybody running an Edelbrock 750 on their big block? - 03/26/11 12:49 AM

Remove the Choke horn by grinding and you gone have a greater Carb...

Posted By: joedust451

Re: Anybody running an Edelbrock 750 on their big block? - 03/26/11 01:45 AM

Quote:

I use Edelbrock 750 on my 451 and really work GOOD

I guess "great" is out of the question, so you have to settle for "good", thats why i ran a "Great" carb on my 451

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 03/28/11 09:43 PM

Quote:

Remove the Choke horn by grinding and you gone have a greater Carb...

Removing choke horn eh??

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 04/02/11 01:18 AM

Here's the voltage regulator. Solid state type??

Attached picture 6563014-vr.jpg

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 04/02/11 01:22 AM

Here's the 78 Diplomat replacement alternator. This is a higher output model than the earlier ones correct?
What would I need to safely upgrade the wiring so that it can handle the added amperage?

Attached picture 6563025-78alt.jpg

Posted By: RapidRobert

Re: Anybody running an Edelbrock 750 on their big block? - 04/02/11 01:44 AM

Quote:

This is a higher output model than the earlier ones correct? What would I need to safely upgrade the wiring so that it can handle the added amperage?

Yes higher amps & you have an electronic reg in the pic. Many ways to go w elec upgrades & myself I clean EVERY connection/terminal AND strive to keep the ammeter needle close to 12 o'clock and power added high amp draw accessories right from the alt w relays. #1 clean connections/terminals and keep high flow out of the bulkhead and if not then running 2 wires straight thru the bulkhead on the 2 main in/out lines (fusible link in/wire out to alt)

Posted By: DusterKrazy

Re: Anybody running an Edelbrock 750 on their big block? - 04/02/11 01:51 AM

Quote:

Quote:

This is a higher output model than the earlier ones correct? What would I need to safely upgrade the wiring so that it can handle the added amperage?

Yes higher amps & you have an electronic reg in the pic. Many ways to go w elec upgrades & myself I clean EVERY connection/terminal AND strive to keep the ammeter needle close to 12 o'clock and power added high amp draw accessories right from the alt w relays. #1 clean connections/terminals and keep high flow out of the bulkhead and if not then running 2 wires straight thru the bulkhead on the 2 main in/out lines (fusible link in/wire out to alt)

Thanks!

As an update, I looked at my lower alternator bracket and I don't think that it is correct. It does not have enough adjustment to get the belt as tight as it should be. I think this could be another issue. The belt is looser than it should be for sure.

Posted By: RapidRobert

Re: Anybody running an Edelbrock 750 on their big block? - 04/02/11 01:54 AM

Quote:

As an update, I looked at my lower alternator bracket and I don't think that it is correct. It does not have enough adjustment to get the belt as tight as it should be.

Yeah I ran into that & if all the bracketry is good I got a SLIGHTLY shorter belt (it dont take much). Take it in w you