Hey give the 3.0 some credit it may not be toyotas best but its better than 90% of any thing else on the road. I was told the head gasket problem was due to toyota discontinuing asbestos in the gaskets in late 1990 (thats why the 89,s dont appear to have as many problems . As for a supercharger knowing what I know now I wouldnt have put one on my 3.4 (ping)