Quote:
Originally Posted by NeverSummer
Do you have an HEI distributor? Throw away that quadrajet and get an edelbrock or holley carb. If you do any offroading buy the offroad kit for the floats. Start with checking for vacum leak (shoud be about 35psi at intake), then make sure that you have enough fuel pressure (4.5-6psi), then check your timing and advance curve(if using a vacume advance). Still no luck...curse at it for about ten minutes very loudly (trust me it makes you feel better)...then push it off a cliff.
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Whoa there, pardner. Many of us running 350's have done just the opposite. Taken off our gas guzzling Holleys and Edelbrocks and put on a Quadrajet.
My Holley Truck Avenger gave me a lot more raw power. But it really burned the fuel to do it. And it would not lug down. Constantly had to put it into lower gears or it bucked and stumbled.
With a Quadrajet my 350 lugs down like a six banger. Yeah, it loses the acceleration contest with the Holley. But that's not worth the difference of 2 to 4 mpg.
As far as offroading, the Holley Truck Avenger performed on angles as advertised. But the stock Quadrajet already does that. And, I seldom cracked the secondaries on the Holley on the trail. When I did, I often got a big bog, because the gas boiled away in the secondary bowl and stuck the needle shut. That doesn't happen with the Quadrajet (or the Edelbrock either, for that matter).
For a hot rod or race car, I'll run a Holley. For all around use, especially for an off road vehicle that's street and highway driven, I'll run a Quadrajet.