It sounds like lifter's knocking much of the time. Especially pronounced if I'm accelerating to pass.

Would too much oil have any effect??. I am kind of paranoid since I blew the last engine without warning. So I am anal about keeping the oil topped off and may overfill a bit from time to time.

It was a replacement engine that had about 160k on it. I did not rebuild it before I put it in because I didn't have the funds or time (it's my daily driver)