The easiest way to do this would be to use a 302/351W or if you have the budget for it, a 427W. All of these engines use the same motor mounts and have the same bellhousing as the stock 3.8L. Of course you'll need a new transmission, a T-56 would be my my first choice, if you need an automatic, you'll probably want an fully built AOD. You'll need a new radiator, new rear axle ( a built 8.8 inch would be fine, but if you want big power a built 9 inch would be stronger), custom exhaust, custom driveshaft, beefier front suspension, if you go for the 351W/427W you'll need an aftermarket hood to accommodate them. You can have a turbo (or two) or a supercharger put on it you want. There's a host of other things you're going to have to contend with as well. However a 427W with a supercharger or twin turbo setup can easily product 700+ HP,
Plan on spending at least $35k for all this. Keep in mind if you live in an area that does emissions testing, your car will not be street legal.
" I want a superscharged/turbo idk about cars tho"
If you don't know about cars then how do you know if you want forced induction or not?