FYI, my flow #'s are enough to support 500 hp with the right cam, induction, etc.
My car leaves a stock 5.0L way back in the dust so I'd say they're not short on power. It is more expensive to have iron heads ported than aluminum but iron does retain heat better so you can make more power with iron heads (all else being equal). If you can afford the AFR's I'd probably go that way but if you want to save some money, a properly set up combo with ported GT-40's will work.
__________________
F4TE 351w block 393 stroker: Scat 3.85" crank, scat H beams, Probe SRS pistons, Proformed 750 DP holley, Vic jr intake, AFR 205's, Buddy Rawls hydraulic roller cam, Crane 1.6 Gold race rockers, Powerforce SFI balancer, centerforce steel flywheel. Kooks 1 3/4" headers, Spec stage III clutch, Dr. Gas 3" x-pipe, spintech pro streets, TKO-600, Moser 31 splines, Detroit Locker.
Just about back on the road... |