Hidalgo13

right now there is an 84 or 86 plymouth turismo in my garage and it was originally going to be fixed up to use, then was going to be donated for a tax deduction, and so not much has been done with it lately, i've decided that i may work on it since i was going to buy a car but now am down a couple hundred since i just bought a new bumper etc. for my daily driver and so i probably won't be buying a car too soon.. to the point.....does anyone know of a better engine that would be compatable that i could put in it to make it worth my time fixing up, i figure if i'm gonna get it back in shape it should at least have some power to offer... as of now i don't know much about this kind of car so any info would be appreciated.
thanks,
Richard