[KirkEvil]

I was just thinking that the Ls6 crate motor puts out 450 bhp, and subtract 15% for drive loss, so your starting with about 380 hp to the ground without mods (except ls6 heads and 10.5 compression)

So, you have around 380+
ewp....5 hp
Headers...15 hp
Ls6 intake/TB....10 hp
Cam....I would hope you make no less than 25 more hp at peak with a Ms3

So my estimate is a conservative 435. I guess it may come down to how the dyno reads out, but Vinny was tuned on the same dyno and made 400 hp with a smaller cam and a few less mods.