I took another look at the one exhaust (and intake) valve that I can see through the oil filler cap with my camera - the ones closest to the front of bank 1. Hard to tell anything looking at it from a strange angle though.

Would it be worth the effort to pull the valve cover off and 're-do' the two exhaust valve seals to make sure everything is seated properly? I don't mind doing that again, except for the fact I would need something to compress the valve springs since I rented the AGA tools last year.

Attached Images