Need Help with Head, Intake and Exhaust Hp500
 

I have a gen IV 330 horse that was bored 0.40 over (flat top pistons) and put in a HP 500 style custom ground cam 224 230 @ .050 with a .570 lift 114 lobe sep. , went with the Comp hydraulic roller lifters and rockers(1.7)new springs and push rods all new from KE performance, also running a Holley marine 800cfm carb. I still have the stock heads(peanut port), intake and stock exhaust,

What heads and intake would you use? and is there a way to go cheap, starting to go broke, was looking at 088 or 049's maybe used merlins. Is stock exhaust going to cause reversion? Thanks...