Trex V.2 Cam
What I want to know is if I buy the Comp Cams 921's the dual spring capable for lift up to .650 do I have to machine the heads?
Also Can anyone give me an Idea of what there power gains were?
What I want to know is if I buy the Comp Cams 921's the dual spring capable for lift up to .650 do I have to machine the heads?
Also Can anyone give me an Idea of what there power gains were?
I have the same setup on a Z06 with LS6 stock heads and gasket. No machine work required for the COMP 921 springs or flycutting of the pistons.
Steve

