as i have said repeatedly forget the clearance #'s. install the pulley with no shims and torque. spin the pulley and if it touches the clutch anywere remove and add a shim. repeat the torque and spin process. do this until the pulley is as close as possible without touching anywere. your done. if theres still a grinding sound you have other issues be it bearing or the clutch assy itself.

just so you know my final clearance was over 40. mine pulls 19 psi boost and is quiet as a mouse. those c3 # for the spacing is just a recommended space