Jerry, we had only a breather on the oil fill pipe at first, then we added a pcv valve on one valve cover with a K and N breather on the other side. We thought the pcv might be sucking some oil into the intake so we temporarily disconnected plugged it.........same results, so we hooked it back up.

The seals on the heads were soft rubber umbrella seals and we bought a new set of the hard nylon ones and replaced the intake ones on the front two cylinders, didn't make any difference.

We thought about the 60 over piston in that hole, but think the gouges might be too deep for a 20 cut to remove. It got scored pretty good, but the machine shop will know for sure when we take it there. Does putting a bigger piston in one hole upset the engine balance, or do you have things rebalanced after?

Don