I doubt ANY VIII Cam converted to run in a IX isa good idea simply because it has lower lift then an IX, you may gain duration, but lose lift. Get Evo IX specific cams and even then the gain isn't that great as the turbo is the major limiting factor.

 

Since someone brought this thread back from the dead........

Does anyone have a b4 and after -- 9 w/bolt ons VS 9 w/bolt ons & cams -- graph?