I'm looking at a standard 1990 300zx twin turbo, its got 120 000kms on it and maintenance has been done recently (belt, battery, pcv valves). considering the kms does anyone have any suggestions for what i should look for when i check the car out? are there some common problems with this particular yr? are there any known problems with the T25 turbos? i looked everywhere and couldn't find much for known problems so i figured may aswell ask the ppl that own some 300s just to be sure.