I'm considering another B-Body build and I'm leaning toward a 6-pack SuperBee Race Car. I'd like to know the proven max power potential of the 6 pack system.

I witnessed a 440 with stock heads (ported) a big cam and a six pack make a TRUE 530+ HP on a dyno. So I know they're good for say 550HP, but how much more power will they feed with a nice set of Vic Jrs, or INDY Heads and possibly 450-500 cubic inches?

Anyone know?