I haev a 95' Z28 with a powerdyne supercharger with a 4lb pulley... I want the car to be a everyday driver that I will not have to rebuild... the car has already been rebuilt before I purchased it and there is about 25k on rebuild... The car came with a 9lb pulley that was never installed.. Also the car had a 6lb on it for a short while but that was the biggest pulley put on.. What is the biggest pulley I can go with and not have to worry about rebuilds and all that good stuff.. Should I stick with the 4lb or sell the 9lb and buy a 6lb... thanks,beau The car has heads,intake and is bored... thanks,

 

Question? Does your kit have the bypass valve already? If not get one… you will save the blower down the line (to prevent the internal belt from popping)


I would sell the 9lb pulley and go with the 6lb pulley that way you will be on the safe side … also tune the combo.. The FMU provided sucks!!! And you should not relay on that to add more fuel …