See attached build sheet...Not listed but, new exhaust valves - intakes measure fine
Estimated HP - The head chambers (believe it or not) came in around 75 cc. So they could be milled a tad to bring up CR and still have plenty of P-V clearance. Also a fairly mild cam by today's standards. I would think with this cam, these heads, intake, headers, and the right carb maybe 365ish HP
The motor is such a sweetheart I didn't want to touch the ports and ruin it for someone who wants/needs stock ports. Chambers were polished to reduce chance of detonation with pump gas fuel and not necessarily for performance enhancement. All the machine work is "dead-on" and every single nut, bolt, and thread cleaned by hand.
This motor has been in my possession and resting inside for 24 yrs...Now it's screwed together and waiting for a good home!