I get a little puff of smoke on start uponce car has sat for a litle bit.
Putting it down to stem seals, mine site for weeks at a time which allows stem seals to dry out.
Not good.
Mine is a 1996 with 80k on clock, so would be very suprised if yours is stem seal probs.
AS Scott said, check plugs for any trace of liquid after sitting over night.