Mike, run a leak down test first to see if the rings are seating properly. The
oil rings could still be bad, but this will eliminate ring seal issues. Make sure your pvc is not sucking
oil into the intake. Spray carb cleaner around the intake ports to see if there is a leak there while it is running. Make sure that there is not too much
oil going to the top of the valve covers or that the oil that is up there is draining back properly. Too much oil there sitting on top of the guides or valve seal will make it easier to suck more oil through. Lastly, and most likey, the guides and or seals are bad. These are just a few thing to check first and save some head aches later. good luck, Scott.