Thanks Mike,

We're using a 331" bored out 0.080" which will give us around 345". It's getting 8:1 forged Ross pistons, but the two turbos (TD05H-14B) are set for around 9 lbs of boost. Guestimate is 500 hp max at the flywheel with around 600lbs of torque at 4200 RPM.

Rear end (Ford 9") will be around 4.11 gearset. I'm lighter than you'll be but my rear tires are a 30.5" OD. This is in the '37 Dodge P/U.

My transmission is an iron case right now which should be OK, I'm more worried about the input shaft.

Guess there's one way to find out for sure

Regards, Mark