93 fzj80 .. I have a pretty good puff of smoke at startup after setting for 8+hours. Just did a compression test that showed normal readings other than cylinder 2 having about twenty psi less than its brothers. Did HG and head seals about 25,000 mi ago.. she runs pretty well other than the initial plume. Im wondering if it's a worn valve stem or corresponding seal. Now if I can ask, what would you do if you were me?