cylinder head question?/AGAIN

Thanks bob ill check it out, . . . .guess I won't be using kb pistons if they're no good but timopar, I haveno choice now but to have that much hp haha everyone I know is gonna be puttin up. Some good numbers and there's a guy I work with, with a 383 stroked nova can't let a chevy guy be the top dawg haha but no really 500+ would make me a happy man. this sb 360 just isn't gettin it done for me haha