Stock heads, stock valves. The seats look to have been lapped previously (engine was rebuilt sometime in the 1980s, then sat for 25 years) they weren't too bad. I would, but I am crunched for time and money. Heads are already assembled. Good tip though. Maybe I can apply it to my '76 heads. I do want to experiment with porting.If the heads have had a recent 3 angle valve job with a deep throat cut, I would take a dremel with a 1/4" crosscut carbide burr and improve/clean up the short side radius on the heads. It looks pretty sharp.
Are the valves factory? If they are I would have the machine shop back cut the intakes. Usually this is just 5-10 bucks per valve. Stainless valves are already made that way.