I have an old problem being valve cover leakage. It's mostly the right rear bank, #8 cylinder area. I yanked off the MP silver wrinkle covers w/the best gasket Mancini had & even tried a factory cover with a new compostite FelPro gasket, still leaks, all surfaces clean. Any suggestions? Also, one that Ive never seen before, oil is coming out of the distributor hold down bolt, bolt hole. It's sneaking out past the bolt. I've tired several correct bolts from other 440's, same thing. I've had this motor for 13 years and it just started doing this. Any help would be great! My nickname in the car club is now DripPan!