1986 Chevy Suburban engine Idle fast and idles rough

1986 CHEVROLET SUBURBAN
900,000 MILES • V8 • 4WD • AUTOMATIC
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BUTERBEEN13
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My 86 K20 I recently did a tune up and carb rebuild since then it idles fast and a little rough I tried adjusting the timing back for the idle but then the engine wants to pop thru the carburater I have also tried adjusting the air/fuel mixture screws but nothing is chaning Im at a loss.
May 1, 2010 at 9:57 AM
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RASMATAZ
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Try adjusting the choke opening and fast idle cam adjustment and also for vacuum leaks.
May 1, 2010 at 2:23 PM