Mine made 882 HP @ 6700 and 772 lb-ft @ 5700. It was a 572 (4.5x4.5) in a world RB block. Heads were 440-1 flowing 357 with a 68cc chamber. Pistons were ross forged flat tops. Cam was a Compu-flow special so I do not have the details. Intake was a indy with dominator flange. Carb was an 1150 alcohol version. On Gas it made 842.
