340 Max HP Potential with X/J heads?

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.

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Good valve job too.