drdpr72

89 5.7 tpi to mild 383 tpi lots of bolt ons vehicle seems to be running very rich plugs black/damp exhaust is white smoke on start smells rick popping in exhaust 02 reading stuck on rich mat and coolant temps seem to be ok unplugged maf sensor vehicle died instant started a few times until it ran with maf disconnected then plugged it back in seem to run much better live data shows o2 lean to rich at this point then when to check timing disconnected adv wire car went to rich on data log even after adjustments made and wire plugged in will not come back off rich? lost not sure where to go at this point very new at tpi but testing everything I can think off btw factory ecu with hypertec prom I don't have any stock proms to compare running? please help