451 Stroker Help

Haveing been a Stk, SS racer, all with big block Mopars, I can tell you that a properly prepped cast crank will work up to 7000 Rpm, w/correct mains, up to approx 550 Hp ! Your still better off w/steel crank ! I have done both ! Why waste your money setting up a cast crank, when you can do it right the first time ! Just my opinion !.........John:!: