273 white smoke

1965 barracuda burning a little oil. Has just over 200 miles on it. Spark plugs look like they have alittle carbon build up, maybe a little oil build up. Is the oil burning the rings just trying to seat? Also have a carb on it that was rebuilt and set up for a 460 big block race boat. I'm thinking it's just running ritch. I've had white smoke since I first fired it