He's got forged pistons.. They are the weak link. Spray away dude. That setup will handle 250hp with the right fuel and ignition systems to run it. When I mean "stock" lower end I typically mean pistons. Because the other parts in a Mopar are plenty beefy. The pistons are too, but can't handle a lot of tune up error (as in lean or too much timing or too hot of a plug). You've got no problem running what you want to with what you listed.