Should I Supercharge?

I dont think that the I4 has enough grunt to make any significant boost with a supercharger. do a 2.3turbo swap. it is a direct replacement and puts out about 120 more ponies than a regular four banger.

So which do you want to do? A V8 or a blown 2.3? I don't even even know of anyone that makes a 2.3 Ford-specific blower.

A (roots) blower is a good choice for a street car because they increase the low end torque, but a turbo 2.3 is a much more common choice. It's soft until about 3000rpm, but since when does anybody lug a 4 cylinder? If you want to know about 5.0 swaps, go to the 5.0 forum. They deal with it 100x more than here.