If it's a whitish blue smoke and only lasts for a few seconds then it's your valve seals and/or your valve guides. Personally, I wouldn't let it bother me. Almost all Fieros with over 80k on them have the same prob. I say prob, but it's not really a prob, but rather a situation that doesn't really need correction unless it bothers you. Good luck.
Phil
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87 FIERO GT 2.8 5spd
0-60 in 6.8 seconds!
87 FIERO CPE 2.5 5spd
86 FIERO SE 2.5 AUTO
87 FIERO GT 2.8 4SPD
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