I'm sure someone will chime in and disagree with me, but with the mark in the center of the valve stem your ok. Sniper just had his engine beefed up, and he has the TP heads. That's how his looked and they just rebuilt them. He sent it to some specialty shop that did more than just rebuilt them. Something about tigging and reshaping the ports. When I asked about the TP head problems, they said that his were good.
I wish he would get on here and explain what all he had done. I can't remember what all he did. 650 cam, bored the carb ventura, thunder jet, new pistons, and shaved the jugs, new ignition. Dynoed at 145 hp. I'll see if I can get him say something on here. He's not much of a computer guy.