I have a rebuilt 327 that a local guy did. Sounded like he knew what he was doing. I've had it for a couple years and am just now running it. I pre-oiled before I started it. I let it run for about an hour while adjusting timing and checking things out. It smokes a lot. It acts to me like the rings aren't seating but the compression is running about 155 on all of the cylinders. The plugs are very oily. Is this normal? Should I keep running it to see if the rings eventually seat?? Any help would be arrpreciated.