Read an article in the US where they did the same.. 3.0V6 from a Camry Solara intot he MR2 and they bolted on a TRD Supercharger kit on top of that....
Supposedly procing abt 350whp with stock reliability
Yo people, here's a powerpoint presentation on tyres you might be interested to know. It's good info and probably very basic for the seefu's, so if you got time, download it and read. Good shit. Virus-free.