Fan swap question 4 cyc to V8

Ok, the electric fan from the 4 cyl MIGHT be enough to keep you running cool.. but the radiator won't be (obviously.) I know of one person running a chevrolet cavalier electric fan on a blown lx.. so it's possible. You could do the Taurus or Mark 8 swap.. it's pretty cheap, then you wouldn't have to worry.

Here's a link to a page which should help with your vacuum questions:

http://www.veryuseful.com/mustang/tech/engine/