Crankcase Ventilation

The even compression is a good sign. You might want to try squirting a little oil down the cylinders and retesting the compression. That will seal up compression rings that aren't sealing good.

BTW: I don't know what kind of rings your running but I once used chrome rings on a Pontiac engine I rebuilt and it took them forever to seat in. Moly rings are much better about seating in faster so that's all I use now.