The engien has well over 250000miles on it, and I would like to know of a motor that could replace it. With about 170hp?

Here is something maybe a bit exagerated but yet awesome for a little 2 seater car. If you have the space,the time and the money I would go to this website and find out how to change your little 4 cyl car into a v8 monster.

http://www.v8mr2.com/