You can get a 3.3 and I believe a 660 belt will fit all pulleys from a 3.2 - 3.5 so no need for a belt per pulley...

Click on the drop down, Intense has 2.5 - 3.6 all in .1 increases. Intense pulleys will fit on ZZP hubs as well and vise versa.

INTENSE-Racing.com: INTENSE™ Eaton M90 Individual Modular Supercharger Pulley

http://www.grandprixforums.net/engin...hart-2486.html