Just curious to hear what everyone else has to say but I've been thinking of swapping a 4.6 Northstar V8 into my 99 GTP? Unless someone can put up a good reason to not do it and give me a better alternative.. I kinda just want to do it for something unique and have a bad*ss sounding V8 GTP lol. Can anyone think of a better V8 that could fit into a 99 or a good reason to not put a Northstar in it?