Slowly collecting parts for my 12-71 roots blown 528 Hemi project and am about ready to start on the blower drive system. I notice there are several different profile pulleys that are available and I have no info on what I should buy. This hemi will probably never go over 1000hp and probably not over 10 to 12 psi boost. Race only no street time. So what should I buy: 8mm, 11mm, or 14mm profile?? I know there are others but it appears these are the most common. Thanks, Max
Last edited by Blucuda413; 09/30/11 03:44 PM.