Well, I was getting my big boost tune ready for the track rental. I cranked it up to a theoretical 21psi and saw 24psi peek in 4th gear according to my blitz boost controller. Lets just say I pooped my pants a little and now know what 850RWHP feels like. Urist made 850RWHP on Nates car with the stock 76mm Hellion kit on 24psi in 5.0 magazine. So I think it would be safe to say my car was making similar numbers LOL!