I had this on my S-Trim on my LT1 Trans Am, but sold the supercharger. The belt that comes with it is set up for a 6.66" crank pulley and the stock 3.33" blower pulley. It worked great, never slipped on me or anything. This pulley made about 4-5 more psi than the stock 6" Vortech crank pulley did. Vortech sells these for about $200 or $250 I think, just for the pulley. This stuff is in great condition, the ribs on the pulley are very nice. I am asking $160.

 

Very interested.... you have a pm

 

Is this still available?