how to achieve 600 to 650 hp sb 408?

INDY head , 11.42 compression .700 ish lift old Super Stocker hand me down cam shaft, 850 cfm makes the best power with this combo.



[ame="http://www.youtube.com/watch?v=ssRAHemsB6U"]YouTube - Duster Awesome 80 ft.Wheels up launch[/ame]