Quote:

Last time it was on the dyno it made about 740 hp. Major change was from a big flat tappet cam (Comp MM305) to a roller cam. The roller cam had a few degrees less duration than the flat tappet but a ton more lift. Lift went from .650 to .830 on the intake side.

I bet if you look at the duration at 0.200" tappet lift, you will see the roller has more duration giving "area under the curve" for more cylinder filling.

That is one stout combo.

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1