I was finally able to take my falcon for a longer drive the other day. I found out that oil is coming out of the rear of the valve cover. I'm worried about over tightening the valve cover bolts. Should I keep tightening until it stops leaking? Also to let you know, I have a 170 with a T5 in a 61 Falcon. The tunnel wasn't wide enough to get the tranny high enough to level the engine. So that is why the oil is pooling in the back of the valve train and coming out the seal on the valve cover. What are you thoughts and opinions?