tensioner pulley size needed for powerdyne

I am finally getting all the parts together to install my powerdyne supercharger and was wondering if anyone can give the right size tensioner pulley i will need for my 95z28 powerdyne kit.The guy i bought the kit from gave me 2 different part numbers and i really do not think this guy knows which one to use. thanks, jason

jhall:
You might try calling Powerdyne to find the number you need. Then check pricing through Summit Racing. (I thought the belt tension assembly was the same for 4.5 and 6 psig units ... I didn't notice any part numbers on mine)
Good Luck