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  #11 (permalink)  
Old 11-03-2009, 12:03 PM
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Join Date: Aug 2007
Location: Carlsbad, Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
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Ok, one more time. Adjust the idle screws to max vacuum ( mine only took 3/4 of a turn out from bottom to get max vacuum). Then, disconnect the vac gauge and put it away. Now turn the screws out another 1/4 turn. Go drive it. Stumble gone? turn the screws IN 1/8 turn and go drive it. Stumble returns, back out the screws to the 1/4 mark and leave it alone. If stumble still gone, leave it there. Sometimes the best vacuum peak is NOT the best driving setup.
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