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!

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.

That's true but it could also be just a matter of wrong carb for the application.

race = Holley gas holes

mild street = carterbrock

gas milage = Q-jet/thermobog



runwhatyabrung

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.html

http://www.moparts.org/Tech/Archive/bb/26.html

PEACE - 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

Quote:

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Regarding the origInal post a 750 edelbrock out of the box is way overkill for a 383 unless it's a really hot engine.

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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.

The idle channel restriction needs to be reamed on the Edelbrock 750's to cure the bog.

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...

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!!

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.

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.

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?

YOu have a PM

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.

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