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Old 08-30-2004, 11:09 PM   #1
dumpit
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lookin 4 kickass carb for my truck

i got a 84 gmc 3/4 pick up..rebuilt 350 motor...lookin 2 get a new carb. want somethin thats gonna give me some extra power 2 move my superswampers easier...lookin for some advice on what 2 get for a kickass setup
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Old 08-30-2004, 11:40 PM   #2
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edelbrock quadrajet
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Old 08-31-2004, 12:56 AM   #3
81shavedtrk
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if you get someone to tune it or can tune it, you can't go wrong with holley or holley made carb. I used to be edle. guy but when i wanted to get more power the tunability of a holley style carb can't be beat.
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Old 08-31-2004, 01:42 PM   #4
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Quadrajet.
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Old 08-31-2004, 04:07 PM   #5
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Holley.... AHHHH >...nothing but problems with mine since day one .
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Old 08-31-2004, 05:29 PM   #6
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I assume you take the truck offroad since you mentioned Super Swampers. The Quadrajet will run alot better at angles than a Holley.
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Old 08-31-2004, 06:47 PM   #7
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Dumpit,
I bought a holley from Bigs Performance Products in Wisconsin. If you search on yahoo you will find thier site. The owner is very easy to deal with and will gladly answer your questions. They will set up a carb to match your combo and intended use. I live at about 5000 ft. elevation and mine was good right out of the box and has exceptional performance. The guy painting my truck thought it was fuel injected! Very responsive and crisp. If your serious about performance I would consider giving them a call.
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Old 08-31-2004, 06:51 PM   #8
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i prefer Edelbrock with off-road trucks, they dont have any seals below the fuel line so less likely to leak or have any problems on angles.. Qjets are good as stock replacements, for a 350 dont go over 700cfm
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Old 09-01-2004, 01:18 PM   #9
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Off road its all about the Qjet. If you not into big angles then Demon makes a sweet carb.
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Old 09-01-2004, 06:46 PM   #10
dumpit
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more of a show truck..i dont take it off road much. lookin for some power though...so i would be better off going with holley if i dont take it off road much or get the edelbrock?
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Old 09-01-2004, 08:42 PM   #11
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Dumpit...is it a basically stock 350 ? what max rpm do you see ? 5000 ? 5500? more ?
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Old 09-01-2004, 10:39 PM   #12
dumpit
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yea its straight up stock. wanted 2 put a new manifold on it with like 3 carbs and **** but i plan on sellin my truck so i just wanna put on a sweet carb cuz the one thats on it needs 2 be replaced i think... also bout 2 put a new exhaust system on it..thinkin of going with a 3 chamber flowmaster with 3" pipes
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Old 09-01-2004, 11:44 PM   #13
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Quote:
Originally Posted by dumpit
yea its straight up stock. wanted 2 put a new manifold on it with like 3 carbs and **** but i plan on sellin my truck so i just wanna put on a sweet carb cuz the one thats on it needs 2 be replaced i think... also bout 2 put a new exhaust system on it..thinkin of going with a 3 chamber flowmaster with 3" pipes
Stock 350 and your thinking about triple 2bbls and dual 3" exaust? Talk about blissfull overkill

You want 650cfm and dual 2.5" exaust max on this thing.
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Old 09-02-2004, 08:01 AM   #14
stepside454
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I agree with Tom about the 2.5" exhaust.
As far as the carb goes, like I said, Id use a Qjet, but if I was going to use aftermarket instead, Id use a 570 Holley on a stock 350.
But youll get 50 differant answers from all of us . LOL
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Old 09-01-2004, 10:42 PM   #15
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Id use a Qjet personally
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Old 09-02-2004, 09:53 AM   #16
screwballl
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everyone does have their own preferences...
i choose Edelbrock because its as simple as bolt it on and almost no adjustments. Holley and others that ive had were continuous adjustment, always having to do something with it. i wanted a set it and forget it carb, Edelbrock will do that for you
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Old 09-02-2004, 04:59 PM   #17
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Quote:
Originally Posted by screwballl
everyone does have their own preferences...
i choose Edelbrock because its as simple as bolt it on and almost no adjustments. Holley and others that ive had were continuous adjustment, always having to do something with it. i wanted a set it and forget it carb, Edelbrock will do that for you
yes, everyone has their own opinion. some of us base said opinion on facts. Edelbrock carbs are easy to fiddle with, but will give you neither superior power, nor superior milage. their high point is that your little sister can tune one. Holley carbs are great for mud trucks or straight line racers, that's about it. they are extremely tunable, but require constant tuning. the Quadrajet is the best all around carb design on the market, PERIOD. the small secondaries will give you good low end response, the toilet bowl secondaries will give you all the power you could want with a stock smallblock. tune them once, and forget about it, just like the Edelbrocks, although a QJet is a little more difficult to tune, its better in the long run.

BTW, there are dyno results out there, and ET slips to prove the QJet is superior.
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