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All Around Carb

Mtndewblazer

Mtndewblazer

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I know this has been asked a couple of times, but I thought this would be eaiser since I have a time table.

WHat carbs are you guys useing for wheeling and some daily driving? Also what kinda of manifold with your carb?
Just seeing what works for you guys.

O Its for a 383.

If you could shed some light that would be awesome.
 
I have holley street avenger modified (has truck avenger parts). I believe its 670cfm. Its a lil too big for my basically stock 305cid. But it does very well. Ive had it on there for over 3 years and the only issue was re-tuning it when I went up north in the winter time. Im at sea level with 89-90% humidty and 70-90s degrees and I went up to the mountains of WV with lo humidity, lo temps and high elevation. Truck didnt like that too well. Mine has electrical choke and works well. I dont have any experience with any other carb but this one.
 
Quadrajet with an Edelbrock performer RPM (dual plane) intake manifold.

Works better in just about every situation than any other carb I have dealt with.
 
I am running a 670 cfm truck avenger on a weiand stealth intake. Took a bit to get the Holley tuned where I liked it. But now I LOVE them together. Put a lot of life back into my tired truck.
 
i run an edelbrock 600CFM and im very happy with it...it's on a stock 350 crate motor, goodwrench if it matters...you 383 may need a bit more...but i had a 650holley before and that sucker would "tune itself" so i dumped it for this one and im glad i did...i drive my truck every day and wheel the piss out of it when i get the chance. all around a perfect carb though IMO.
 
I'm running a 780CFM Holley 3310-1 on a big block. Split-plane manifold. I've re-worked the carburetor with spring loaded needles and bowl vent baffles. It runs great and gives me no problems off road on hill climbs, decents or side hills.
 
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What kind of wheeling?

You aren't going to beat a Q-jet for off-road performance, a Holley Truck Avenger is probably the second best IME.

I have a Q-jet on my 400+ hp 383 and it feeds that just fine.

Holley and Edelbrock carbs are easier to tune and mess with than Q-jets but the end result is well worth it (and Q-jets aren't really hard to mess with).
 
Is anyone running one of the new Demon Trucker carbs yet?? Feedback?
 
i have a 1406 edelbrock on my blazer, not a single problem with it. goging to a double pumper now though since the blazer is no longer daily transportation.
 
I have a 1406 edelbrock on my 454 with a performer intake. Its way to small for my motor and will be getting upsized soon. I will report though that since installing the spring loaded needles and seats I have not had a single problem with it. Swapping rods out is super easy and makes leaning the carb out for higher altitudes a snap. It has an electric choke which works well too. The only problem I have had is an on road issue. When driving it in the summer at colorado altitudes the fuel boils in the bowls and causes the engine to stall. Also, probably due to the age and use, there is an internal leak somewhere that is causing a rich condition on the left side of the carb. That makes 4 of the 8 cylinders run much richer than the other 4 and drop in mileage. I was getting about 9-10 mpg hwy, now its 7-8.
 
Thanks for all the help. Now I just need the mula to get it. I need to be running good by the end of Febuary to make it to my Bros house for his 4 wheel run in Colorado.
 
For my money, it's hard to be the Quadrajet. There's really no need to replace it with anything else, unless you're going with fuel injection.

On engines that didn't come with a Quadrajet, i.e. on a couple of my Jeeps, I've used the Holley Truck Avenger with about the same success.

I haven't heard much about other "off road capable" carburetors so I can't comment too much on them.
 
I have holley street avenger modified (has truck avenger parts).
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is there any benefit to that over just getting a truck avenger? i've never seen a part-by-part comparison of the two, so IDK.

You aren't going to beat a Q-jet for off-road performance, a Holley Truck Avenger is probably the second best IME.
Click to expand...

interesting that you put q-jets over the truck avenger which is supposedly purpose-built. fine by me, since i have a q-jet:D.

i've never taken mine to high altitudes (i'm about 500 ft above sea level), but around here, it works great. great offroad, but i do adjust my driving style some to avoid bouncing it around too much. i'm considering a tbi swap so that i won't have to be concerned with that anymore. plus the mpg woule be better and elevation wouldn't require rejetting or anything.
 
I have had 2 buddies that had truck avengers, they seem to work well except at the really extreme angles. both of them took them off and went to fuel injection. All problems solved.

Another vote for the quad, I think its pretty much the best carb out there.
 
edelbrock is forgiving in tuning, out of the box the right size will work fine. Holley will require lots of tuning to get a dead spot out of the rpm band. Both are good carbs and I think the Holley runs better but you better have a vacuum gauge and be prepared to tune it for many hours and with the season change. I would recommend not to over size the carb and NO Mechanical double pumps on an automatic trans., lots and lots of tuning to get the dead spot out when secondaries start to open. Great for drag racing but not for daliy driving.
 
Edelbrocks are the easiest carbs that I have worked with.

I love quadrajets, reliable and simple. I have a demon on my DD though...make sure you let it warm up, but after that It will pull good. My old 600 edelbrock would break up at 4K the demon keeps on pullin. :D
 
someone help but the last Q-junk I put on for someone was an edelbrock made quadJet. That was a good carb for a quadjet and it came from online wholesaler(summit) and it was as cheap as you could get it.
 
I have a 383 and am running an Edelbrock 600cfm with electric choke. I love it. I am also running an edelbrock performer intake manifold. I originally had a holley 670cfm carb, but the thing never ran right and was always tuning itself. I would go with an edelbrock.
 
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