340 Max HP Potential with X/J heads?

moparodbuster said
That's awesome for "mildly ported J's"! What exactly was done to them, do you have the post-porting specs? Combustion chamber cc's, Intake valves, etc?

I believe the chambers were 57cc. 2.02, Manley valves (intake), Racetec Dished Pistons, Molnar Crank & Rods, Erson Hydraulic Roller Cam (547 [email protected]) , Comp Solid Lifters and Comp Roller Rockers 1.5 ratio...
I don't think I have any good photos of the heads after they were finished.