ok i have a 85 z28 with a 350 in it. it was tpi but the guy took it off and put a carb on it. when i bought the car the carb was crap and i put an edabrok 650 peformice on it. the timing was off when i bought the car and now we been trying to fix it for the past 3 hr and have been getting no where. the car still diesels out. and to make things wose the guy i bought it from put 4 marks on the balincer and we dont know what each one means and the guy phone dont work any more to ask him