I was looking over on Scott Browns site and he has the stage 5 replacement heads assembled and complete for about $4700/pr. I honestly don't know what head would be needed on a 572 Hemi with between 11:1 and 12:1 compression to make roughly 900hp street/strip deal. That replacement Stage 5 head it advertised at flowing a tad over 400cfm.
I purchased my Stage V heads from Scott Great guy to work with, The only reason i would think about going with FHO is if you wanted to O-ring the heads for the intake, Its a diffrent offset to make up for the gasket, So you cannot just have the Heads from Scott machined to install O-rings, If your not worried about the O-rings and you will be using a standard gasket Scott will set you up with a great set of Heads.
