I just bought a 1989 gte auto, and i noticed 2day that when i start the car for about 5 mins the muffler will pour out white smoke, im thinkin head gasket but i checked the oil and it looked ok what could this mean? (new to supras)

Black smoke is oil burning, white smoke is coolant leaking. You have a coolant leak and most likely its at your coolant pump.. Pray for hose leak b/c the pump can be costly..

yeah my integra had a pump leak and it dug a hole in my wallet

if your water pump is leaking it can't get into ur exhaust ;)

how is your coolant level, has it gone down? does your overflow bottle have water bubbling out of it?

blue smoke = combusted oil (burnt oil usually compression rings)
white smoke = fresh non combusted oil (valve seals generally)
white smoke also = water

do a block check, local garage should be able to do this for you
also a compression check

white smoke on a cold morning can also be normal... condensation in the exhaust

keep an eye on it and let us know if it worsens