Yeah, I heard about that 1UZ '28 also. Haven't seen any pics and I think it's mainly used for drag racing and not for the street - but I could be wrong.
I'd like to jam a Ferrari 328 engine into a '28, just for the hell of it. Though I think Ferrari engines aren't cheap - not as cheap as a 1UZ, and I'm not sure if they'd be much (if any) more powerful than the 1UZ.