I'm going to re-seat the valves myself with the method rspears said, Its a lot cheaper to just do it myself sadly. I didn't notice smoke on first start up, but since my heads are in the shop I might as well get the valve seals replaced anyways, its cheap insurance. My pistons did have a bit of carbon build up but that's probably due to bad fuel, and one carburetor that needs a tune. And quite possibly just a small amount of oil leaking into the cylinders at night. But hey, doing the valves myself will be cheaper by about 315 dollars, Sooo that's the route I will take.