Bracket raced a number of years with a 501" stroker... I used a Lunati Crank and rods (because I refuse to support Chinese industry), with the heads you mention on the last one we built, and the John Kasse design heads prior to that, Wiseco pistons, Comp Cams mechanical roller (custom grind, call one of their techs, describe your project and use a hydraulic roller for the street). This 501 was built about 7 years ago, bracket raced for 3 seasons @ 100+ runs per season. In the off season we'd do a leak down check on the engine, touch up the heads and replace the rings if necessary. Now it's in a T-Bird bracket car and gets run 4 or 5 times a year. The best cam, an 1100 Dominator on E-85 the car did 500 hp, 500 torque to the wheels. 500 horse at the crank would be quite easy with a street engine!