I believe he did a full porting on the heads, with oversizes ferrera valves, guides, and springs with stock cams and it flowed less then stock. Then they tried it with aftermarket cams and it flowed more then stock heads with the same cams. I think this is correct, but talk to charlie for better details.
nice answer jeanius. you're an idiot. look at the question grammar major. -NIX600_HP_Z