Modern CNC Prop, Heads, Intake, Cam from research cams. Should get at or above 300 hp with plenty of torque. Can go higher, but that always seemed like enough for me.
Previous: 1993 Prostar 205
Red 1998 Ski Nautique, PCM GT40, 310 hp, , Acme 4 blade, Perfect Pass SG/Zbox.
Be kind. Have fun.