Dude, check out Performance Mustags of Houston. Take I-10 to I-45. Go north on 45. It is like 1 or 2 miles up on the left. This place has any mustang you could possibly want. That is all they sell, hence the name. They pretty much know their stuff. The prices are a little high but it is like any thing you have to sell, start high and then you'll get what you really want. I'd suggest checking them out. Most of the cars I have ever seen up there were pretty clean. They had a 89 gt with 2 pages of mods, everything on one line of course. They said it ran a best of 12 sec flat, they were selling it for $8000 2 years ago. They also have a website. I'll look for it and post a link.
Caymon
Here you go dude. Check it out.