Need a lot more info.
What's it for?
How much does vehicle weigh?
How much NOS?
Flow rate of the heads?
How many RPM's do you expect to turn?
Is the rest of the motor built to handle that kind of RPM's?
What kind of trans and stall?
What does Ohio crank know about camshafts?
I'd rather call a cam manufacturer instead of a crank guy. JMO.
Just because a motor makes big hp on a dyno doesn't mean it's the best choice in your vehicle.
I had a 548 with a pretty big cam, but let the engine builder talk me into a bigger cam. It went from 799hp to 869hp on the dyno, but I lost a full .10 in 200' and never got it back with that cam.
Bigger is not always better!