500hp to 600hp is a pretty big spread.

A 10:1 446 with stock rods & crank, KB hyper flat tops, with bowl blended rpm/sidewinder/stealth heads, an rpm or SD intake manifold, a 509 cam and a stock non-adjustable valvetrain will get you 500hp.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads