is it possible to put a twin turbo jz supra engine into the 88' mk3 non-turbo model of the supra?.....both are real wheel..both are 3.0 liter engine..what problems would i run into?

I'll sum up both of your posts and put it as simple as humanly possable, YES. Anything can be done with enough time, money, skill, and more money dumped into it. Few have done the 2jz-gte swap but the 1jz-gte swap is getting more common every day. The 7m-gte swap is still the best bang for the buck and the easiest to complete. I suggest to you to start searching and reading everything you find here and on supraforums, once you learn alittle more about your car you'll figure out what to (and not to) do.