This is an 05 A motor, all bore 107 with Crane 296-2 cams, 600 lift I believe. It has Jims 1.745 rollers on the intake and S&S 1.6 ratio rollers on the exhaust, and S&S adjustable pushrods. I have heard that different brands of rockers is a no no. There is end play of .02 on the rockers. So, is this cam a "noisy" one? Are mixed brands of rockers bad? What about the rocker endplay, do the need to be shimmed and how much? Seems to be too much clacking on this bad boy. Any help is greatly appreciated. This will be my nephew's bike when he gets back from Afghanistan.