You can go to the positive type valve stem seals and eliminate the smoke, but be sure to remove the O rings under the split locks and the sheet metal deflectors from the top of the valve springs. Otherwise you'll starve the valve guides for oil and wear them out in a hurry. There MUST be a little oil going down the valve guide to prevent dry running and galling or rapid guide wear. The smoke is caused by excessive valve oiling and oil puddling on the back of the intake valves with the engine stopped.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!