[Rusty2211]

Rick,
I run a flat tappet Crane cam that has a max lift of .526/526 @ the valve per NHRA rules. The duration is somewhere around 248/256 @ 50. I say somewhere because the guy I buy my cams from does all the dyno testing and he grinds the numbers off the cam. He just tells me where to put them in the motor (usually 106-107 range). I run about 215# on the seat and 415# open and I'm able to do this because I run Shubeck lifters.

The factor in the class I run is 375 HP so you take 375 x 8.5 + 170 LBS for the driver and you come up with 3355 Min weight. I shift the car @ 6600 and in good air cross the traps @ about 7300 RPM. The engine is making about 550 ft-lbs @ the flywheel.
Rusty