Welcome to the Mustang world!

As far as learning, you'll want to read as much as you possibly can. A few good sources of info are two magazines called "Muscle Mustang & Fast Fords" and "5.0 Mustang and Super Fords". The net is of course a wealth of infomartion. As Liz said, a good car manual that is "year specific" (1987-1993) will also help you learn more. Are you wanting to keep the 2.3L? If not, there's a few sites with a play-by-play on how to swap from 4 cylinders to 8.
