How easy? Fairly easy, if you're getting the entire car, that means you've got everything you need to make it work.
You need obviously the Motor...and the TPI unit, wire harness and computer. You're smart taking it all from one car. they made several versions of the TPI system that if you try to piece it together from several cars it can be a real nightmare to get it to function correctly.
as for how fast... i'd say with a rough estimate..... low 15s to high 14's doesnt sound tooo unreasonable for that size car and powerplant.
Good luck, feel free to come back and as more 'go-faster' questions.
