Edelbrock vs. Carter Comp.

[fatride]

Is there any difference in quality between the Edlebrock carb and the Carter Competition series carbs or are they one in the same carb? I think the Carter would be the better of the two!

[Ronnie Russell]

Ray, I have used many of both and I cant find any differance in quality between the two. I am sure there are some people that had a problem with Edelbrock and therefore would only buy Carter, and others who feel the opposite. Personally, I cant see any difference.

[gearhead409]

the Edelbrocks are a completely re-designed carter AFB. they fit around today's streetrod, street/strip guys. the old competition carter AFBs are more race minded. i have several sets of them including a set on my tee bucket blower motor. i think you are right about the carters. i like 'em!

[Tony Salins]

Gearhead409,
I have a friend who has a set of Carter 750 Competition Series AFB carbs. He will sell them to me but doesn't know what a fair price would be. The carbs are used but look to be in excellent shape. Do you have any idea what they are worth?

[gearhead409]

i see nice used ones go for $75-$100 at swapmeets now days. the sets i have where bought new years ago for about $175 EA.

[gearhead409]

OK, now i'll ask a question. what is the differance between the newer style 9600 series carter like ray just bought and the older 4700 series carters i have other than the ports for emission controls. if any?

[fatride]

The only thing that I have noticed Just by looking at the two are the brass tubes that are positioned in the top of the throttle bores of the old AFBs. They are not present on the Edlebrocks or the AFB Comp series. I assume that they are bowl vents?? I have wondered what those are?

[W Head]

I have re-built many AFBs and Edelbrock carbs and always glass bead them. The AFBs are all Alum. and look new (real pretty) :love when beated, but the Edelbrocks come out a dull gray, looks OK, but not as good as AFB. The Edelbrock looks to be cast pewter and is more heavy (guess a pound or more).

W Head

59 El Camino 348-3,2s
59 Impala 409-2,4s

[gearhead409]

the 4700 series are the first competition carter AFBs. the ones i have been using are 4762s 750 cfm. a pair of them is a whole lot of carburation but works well on a blower motor. i was wondering if the newer 9600s are the same except for the extra emission ports. if so, maybe the 9600s will work on the next blower motor i build as the 4762s are getting harder to find in good condition.

[Ronnie Russell]

Gearhead, It would seem to me that 750cfm is 750cfm no matter what "style" of AFB you use. Surely some with much more knowledge than I will comment. but I see no problems for you.

[gearhead409]

a blower motor has to stay on the rich side as soon as you crack the throttles open. the 4762s are fairly easy to tune for this. with the 9600s having emission ports,are they designed for leaner conditions at low speed?

[Ronnie Russell]

Gearhead, it would seem to me that the emission ports would not figure in with the correct jets and metering rods. I have noticed that the newer carbs(9600s) come with smaller jets than their earlier counterparts.(4700series) Seems to me you could just go up on jet sizes with the 9600 and be where you want to be .

[gearhead409]

if the off idle enrichments are the same i think i could get the 9600s to work. you got to remember when you open the throttles on a blower setup you don't loose alot of vacuum under the carbs. doesn't work the same as a normally aspirated engine.

[Ronnie Russell]

Gearhead, You are the one with the experience with blowers, and since you already know which step-up springs that work with your set-up, it still seems to me there would be no differance between 4700s and 9600s. The springs provide quick transistion and once youve conquered that it would seem to me you would have the combination where you need it. The emission ports would be plugged anyway. Still gotta think the 9600s will work fine.