I would have to wager that the smoke is condensation boiling out of the oil. Have you changed the oil? If not, you should. A lot of water can collect in the crank case when the engine sits dormant for a long period of time. Do you use a PCV valve?

Last edited by bigsbigelow; 09/28/11 04:33 PM.
Ryan "Bigs" '73 Duster (BLKDUST) - Black, 100% factory sheet metal, flat hood, 346 cid, J Heads, and a bench seat. http://s268.photobucket.com/albums/jj1/bigsbigelow/ Best to date: 12.40 @ 109 mph