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Ok, next question regarding carb choice

What would you do ???

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Skytrooper

Skytrooper

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In my previous thread I was curious as to what the original carb was for my '71 440 HP A/T motor. This post calls into question what is the easiest, more dependable carb to choose. I already have the Holley double pumper, but would need to get the dual fuel lines and set it up from scratch. I do not have a Carter AVS 4968, but it seems it would be a direct bolt on with minimal adjustments needed.
I am asking for your opinions and experience. I am not going to go street racing or drag racing. So just looking at dependability and ease of operation.

Thanks,
Matt
 
Skytrooper said:
In my previous thread I was curious as to what the original carb was for my '71 440 HP A/T motor. This post calls into question what is the easiest, more dependable carb to choose. I already have the Holley double pumper, but would need to get the dual fuel lines and set it up from scratch. I do not have a Carter AVS 4968, but it seems it would be a direct bolt on with minimal adjustments needed.
I am asking for your opinions and experience. I am not going to go street racing or drag racing. So just looking at dependability and ease of operation.

Thanks,
Matt
Click to expand...
The Edelbrock carbs are pretty nice for the money and fairly easy to tune. Replaced the carb on my W100 with the Edelbrock and have no complaints.
 
I'm a Holley guy. For me they are the most easy to work on & tune. My 3310 was a great street carb. But that was decades ago. I had a very good Carter AFB but it got old & I was not able to get it back. No idea why. I know the Holley carbs & can deal with them. Just my opinion.
 
Since this is a street engine, my opinion would be a vacuum secondary Holley, they are a lot easier to tune for the street, but again it's my opinion. For a more original setup, the edlebrock Thunder series is an AVS. You can look around for an original Carter but good cores are getting hard to come by.
 
I've owned and run 1 Edelbrock AVS, several carter AFB's, several Edelbrock AFB's, and a couple Holley 3310's. I'll take a Holley 3310 any day.
 
I just did what your wanting to do a couple of days ago. I have a basically stock 440 in my '69 r/t and the stock 4618 avs was just burning too dirty at low rpm for me. so, I put a 1407 edelbrock on it. I switched all the choke stuff and primary throttle shaft over to mopar and other than the location of the mixture screws it looks mopar. currently I have .110 primary jets with 68x47 metering rods, .104 secondary jets and .110 needle and seats. I don't have a bunch of time on this yet but the initial drive was very good. engine was very smooth, starts good, drove nice; which is what I wanted.
 
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To each their own. We get comfortable with some things. My new AFB ran great for several years, then I as an idiot couldn't get it back. I think I have Holley's figured out.
 
Edelbrock AVS2

The annular boosters are fantastic. And you can set it up single feed or dual feed. To me, they are very trouble free and easy to tune. Rods and step up springs are a couple minute job to swap out. To swap the jets is more like 10 minutes as you remove the top to get at them. No fuel spill. One work, get a phenolic carb spacer.
 
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I run Holley's and love them but the new edelbrock's are pretty good too and retain a factory look and fuel line location. Holley style carbs are definately more tunable, but if your not up on them, they can give you greif and cause you more pain than an edelbrock. To each their own. I for one will never try and make a 50 year old worn out carb housing work. Some are still good, but alot of them the shafts are worn and they will never perform like a nice new out of the box deal unless they are COMPLETELY gone through which is way more than its worth for a driver to me.
:thumbsup:
 
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My AFB was about 1976, Worked great. No idea what the current carbs are like.
 
I had often swapped between both Holleys and Carters, always experimenting and tinkering. I found the Holley easy to tune, but when I learned about the Carter it was also not a problem. I thought the Holley looked better, but I noticed two things; both carbs ended up giving me similar power but the Carters always used less gas to do so.
 
I run the 4640 Carter AVS 750cfm on my 1971 383/432 Stroker

Had an excellent core to begin with though , and yes thats half the battle

Replaced the 6125 S Carter AVS that was on my 383 Magnum

I rejetted using edelbrock rods/jets , made my own plates , and blocked off the compensator valve

I just love the AVS series carb , mechanical secondaries and fine tune your air door , can rejet using edelbrock components , response is awesome off idle destroying the 275-60 tires

The new AVS2 800 looks sweet
 
I'm a Holley guy but one can't argue that many have great success with the Carters either. In my case I bought a Eddy years ago and probably got a bad apple, leaked at the shaft, vapor locked, etc, hated it and won't ever buy another because of it. I will say the Carters are really simple, less pieces and parts to worry about.
 
khryslerkid said:
I'd like to know the measurement of your return spring and where you can get one. Been having problems finding a longer one that I can put a smaller one inside of. Looking for 9 1/2" long.
Click to expand...
that spring is original to the car. unfortunately in my younger wisdom I trimmed about an inch off of it 35yrs ago. I think the repop is what they call the gray spring, although this spring wasn't gray.
 
Photon440 said:
I had often swapped between both Holleys and Carters, always experimenting and tinkering. I found the Holley easy to tune, but when I learned about the Carter it was also not a problem. I thought the Holley looked better, but I noticed two things; both carbs ended up giving me similar power but the Carters always used less gas to do so.
Click to expand...
the carter has a more sophisticated metering system; mixes air and gas better. they are a mileage increase. those edelbrocks come with a manual to help people understand them and tune. I don't know if folks don't understand what they read in the manual or just ignore it?
 
I ran a lot of holley carbs back in the day. from 600's to 950 three barrel. used 6paks for decades. just got bored with them.
 
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