Okay so have a 95 Gt with the 5.0 (obviously). The engine was running very choppy and was blowing smoke and oil out of the dipstick tube. So I had a new pcv valve put on, but still the issue continued. So he compression tested the engine and found that the rings in one cylinder are bad. I haven't done anything about it but now, since I've driven it some; the oil and smoke no longer come out the dipstick but its now coming from somewhere in the back of the engine any idea where it would be coming from and what I could do to fix it without rebuilding the engine?