Heads

[chevguy]

Hey guys, Finally got my 540 cube going in my 69 camaro, dynoed it and a little dissappointed with the figures, 480 rwhp and 650 ft/lb at 5500. This was a 502 that we tweaked so still running the ported edelbrock performer heads,air gap manifold and a cam which I now know is too small for a 540 cuber. My question is I will be over for SEMA this year and will be contemplating an upgrade to the top end, which is the best bang for buck cylinder heads in your opinon? I am looking at the 357 AFR Magnums atm but welcome more opinions. Ta, Ken