Good advice on the Perfect Circle seals, I had considered those too. I agree that the pcv system was not able to keep up with the blowby. The K & N breather on the drivers side valve cover would emit smoke at times, when it should have been the inlet for air into the engine. He also got some oil drops on the firewall after a long drive, from that breather.

The funny part was that we did a leakdown test on all the cylinders and all showed 10%, which I understand to be good. Maybe the large amounts of oil in the cylinders sealed them for that test too?

I'm actually looking forward to building this engine again, this time taking extra care in the fitting of all of the components and making sure everything is sealing well. The shame of the car is that everything else works so great on it.............it goes right down the road, handles well, rides great (it should, it weighs a lot more than most similar cars ) it shifts fine, no leaks anywhere, etc. But this engine thing is keeping him from enjoying it after such a long build. Time to correct that and get the car back on the road.

Don