i know i'm going to sound like pdigs, but if you SEARCH and do a little research, it will go a long way.
but as to you other questions, about the swap. I'm assuming the only reason you want to swap is for the power. Basically, how bad do you want it. If you're willing to drive your engine into the ground and get what you can out of it, then do it. If you have the money right now for the swap and you want the power, then go that route. But basically, learn more about what you're looking for, what you're trying to achieve, and what you want your end result to be. And then search.
