Quote:
Originally Posted by Masonite
Thank you all for your advice. I tried Mulletbird's tactics first, and that fixed the problem. The choke didn't want to open all the way, so for now, I have a zip tie keeping it fully open. Might not be the best for cold days (although I'm not anticipating any more for awhile), and it's a little iffy on a cool start for the idle, but once warmed up, the car performs better than ever.
Also, looks like I'd have to throw in some adapters to even get a holley 750 on--the quadrajet that's on there now doesn't have the primary/secondary fuel bowls that the holley does. it's practically all electronic controlled, where the holley isn't.
Thanks again for the advice!
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Your Q-Jet is a spread bore carb, and the 750DP is square bore. You will need an adaptor for that.
As for carb size, there are rules of thumb that people follow, and sometimes the engine just likes a lot more carb than one would think. For a stock 305 you should be fine with a Qjet or 600-650 holley.