Trick Flow Heads on Engine Power.

408
11.2CR 13cc dish piston .039 on the quench
TF 190
Comp Ultra Pro Magnum 1.5 rockers
howards Solid Flat 254/260 *050 600/615 108
Updated Strip Dominator (P4452893)
800 cfm
TTI 1 7/8

It should certainly be healthy. DesktopDyno 5 predicts 577 at 6k

That seems pretty realistic to me.