Where can i get a diagram for the carburetor vacuum lines for a 77 corvette? The car runs great (engine rebuilt), but when i stop for a red light and then start off it hesitates and sputters. Maybe it is filling with gas while sitting? It has been bored 30 over (had to) and has a slightly larger cam. (.450) Any suggestions on the hesitations? We think it may be vacuum related so i am trying to find a vacuum diagram for the carburetor. I know it needs a stall convertor but we don't think that has anything to do with it. thanks alot.
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Re: 77 carburetor vacuum
If the idle wanders while you're stopped, I would suspect a vacuum leak. Since you get a hesitation when you start to accelerate, I would check your accelerator pump, your initial timing, or the proper movement of your weights inside your distributor.
Bill Baird -
Re: 77 carburetor vacuum
yes, it was a vacuum leak. Lights were slow and we finally found a small leak. Thanks for the help. She now runs like a new one. Only stronger. 180 hp went to about 300 or so. looks like a sheep in wolfs clothing.Comment
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