hey guys installed my p1sc on my lt1 yesterday the issue that im having now is with the pulleys i put the stock balancer/pulley on then the procharger spacer then the procharger pulley put all 3 bolts in with a washers got all 3 bolts reall tight and the stock ballancer/pulley is loose are there suppose to be some spacers or something to get the stock balancer/pulley tight ? im using the bolts that came with the procharger

 

Probably have better luck getting answers on the Forced Induction forum. I'll move it there for you.