my 93 SR is blowing a little bit of white smoke (not alot but deffinetly coolant). there's NO over heating. i have one spark plug that looks a little oily, the rest are normal. i find no power loss. i just switched to synthetic oil a month ago (not sure if that means anything) i still have to do a compretion test and leakdown test. can anyone sugest anything or tell me what to look for thanks

93 Montero SR, 33x12.5's, 2" lift, 2.5" custom exhaust