Crank is good for 600, blocks good for 600, internals because of internals I'd say can run 325 with supporting fuel and good tune. For longevity keep the engine under 300hp. If you don't care I'd get a BAP and stay 335-350.
Anthony ....The one and only GTS Blue SVT
Turbo Tuning Underway!!!!
-Semi Built Tranny(Torsen/Clutchmaster)
-Triplex Comp CT2 Billet HF-X