Valve covers with clear tops

Roy is right. I had a friend years ago who had some plastic all clear valve covers on a Chevy. You caint see nuthin. And he had a stock oil pump. Imagine how much oil a high volume pump would throw up there.

Yeah, those things were a gimmick. Didn't last long after they got dirty/baked oil in em.
BTW RRR those are NOT the MP covers !! LOL