Not really... there certainly not a head you just blindly slamm valves in and go run. Thats actually insane... I'll add to what YR says below...
Mostly because the had is to closely based on the OE lay out.You can only get so much out of it and thats it. (Any head really)
The intake side ported out pretty good on mine but did give up the ghost a little bit early. Still, on bench Brett had the heads flowed on, 312 cfm on a 4.125 bore will make good power.
As cast, ummmm, YUCK? I think would apply. Could be worse though...
