My 2006 LS2 Z51 6 speed was built by Manny. Trickflow 225's, cam, ported FAST 92 intake, Vararam and headers. My first dyno pull was 485 rwhp/436 ftlb. I felt the cam was a too aggressive with bad street manners so I had Manny change out the larger cam for a milder cam. My next pull was 450...