Keep in mind the need for the high-boost valvetrain kit and race gas with the higher numbers from hahn. I was psyched for 375whp on stage 4, but pump gas numbers seem to max at ~300whp, someone can correct me if I'm wrong. It's still a hell of an accomplishment on a stock bottom end rated for 177bhp. I'd love to see someone drop lower compression pistons and forged rods in the LE5 and a rather large turbo screaming to 8k rpm.
All this talk of a stage 3 s/c kit...I've never had so many options that keep me from deciding!