Well I took off my intake today (again) to fix the leak in the rear of the lower, and to get out the bolt that got broken off and when I took off the back plate on my upper, there was oil there again! I had my dad look at it and the only think he'd know that could cause that is the PCV line was kinked in the middle... Would this cause oil to go up into the upper intake? Also, how do I get off the stock valve covers? They seem to be stuck on there pretty good. I have some fox bodied valve covers I'm going to stick on there once I get my stock ones off. For the valve cover gasket... do i get one from an 87-93 stang or a gasket for a 94-95 stang?