I'm actually detuning mine, bought a crosswind airgap and a Comp Cams 20-604-9 264/274 .512/.512 112 050 inch lift 210 int./220 exh 900-5200rpm.
I'm ok with if it goes down from 400hp+ to 360-380hp got the same lift. Looking for more off idle power it's mainly just a driver not a race car.
