Question about 1997 Chevrolet K1500
Try adjusting your air/fuel mixture screws. Turn them all the way in and turn them back out 1 and a half turns. This will base line you. Double check for vacuum leaks at the carb. and intake. Spray some WD 40 along the intake where it meets the heads and see if your engine idle changes. If it does, replace you intake gaskets with a good set. Replace carb. mounting gasket. Check for any unplugged vacuum ports. Once you're able to idle it down to 1000 rpm's, turn your mixture screws in until the engine stumbles and turn screws back out until the engine achieves the highest rpm and turn in again only at a 40 rpm drop.
Posted on Jun 22, 2008
I had a 350 years ago bored 30 over 300 heads with a 600 holley. could not keep it adjusted for nothing. went to a quadrajet bigger jets in it had much better luck !!!
Posted on Sep 29, 2008
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