Looks like normal wear to me as I worked for a local builder and we freshened roundy-round motors that looked similar after a season of racing. I agree about a new cam/lifters(roller if you can) would be nice and as an example, my car has roughly as many passes and a few thousand street miles and ran it`s quickest pass earlier this year. Why did u tear it down anyways? Just curious. I hope to freshen mine soon unless it sells. Good luck w/it.