Top swap is taking the heads, lower intake, and supercharger off a GTP model, and with a few other parts, adding it onto your cars engine. This is what we call a "top swap".
GT's have higher compression than the GTP's so you have to tune correctly for it so your engine lasts longer, bot for the most part, its swap it over, and have fun.
With that...I would rather go turbo if I was going through the effort. You have much more benefits, and can open so many more doors with a turbo on one of these 3800's than what you can achieve with a supercharger.
As said, the electric turbos = crap. :th_thumbsup-wink:
Go real, or go home. Get you the real deal, and be sure to have an obnoxiously loud blow of valve in your set up.
Welcome aboard to the forum, we are happy to have you here. Be sure to ask any questions you have, no matter if you feel that they are stupid. We are all here to help ya, and others, so you dont have to worry about flaming on this sight.
Hopefully see ya sometime soon, over on the local KC forum.
~F~