ok so im considering buying a car, it is a 1990 mazda mx6 2.2 turbo 5 speed, and im kinda excided about it, but the guys said it will need a head gasket, im and amiture mechanic and iv done enough work on cars i think im ready to give it a try (replace a head gasket) id like to know a few more things tho, for 1 is there any tips in doing this????? any known problems with the model??????? (the 1st gen DSM had a tranny syncro problem) The guy said there was not oil/water mixed yet, but has white smoke and "smells like antifreeze? tips? suggestions? how hard is this job?