Mods to Z24's

What is the farthest anyone has taken a turbo kit on a Chevy cavalier? I'm looking just to get some ideal of what people have done and to see just how crazy I might be. I am looking at installing a stage 4 turbo. I have a big kill list in my town. And allot of them are 5.0 mustangs. But Is a stage 4 turbo a little over kill? Have plans of getting a complete custom kit from exploited racing along with new piston's and intake manifold. In improve suspenstion. Has anyone else done any mod's of this sort?

www.jbody.org