I'll use the 302 heads on DT, and with my port job I'm hoping they flow around 240 @ .450 lift. Even though they are closed chamber, I'll use some of all the left over money to mill an additional .050 and hopefully that puts me at 9.8 to 1 with Fel Pro 1008 gasket.
Oh! I plan to dremel the divider out of the plenum of the 360 intake making it more of a single plane. That intake should flow what the heads will flow then.