i put new wires, plugs gapped at .30, put the large vam back in, turned the boost up to what the guage is sayin 10 psi but i dunno its quick, then i went and raced a guy with a 2002-1 silverado 2wd thats lowered with full exaughst, "intake work", some kinda yada yada rearend, and the "chip"...