try
www.saleen.com
theres a lot of different saleen mustangs
S281 - 290 hp 13.8 quarter
S281SC - 380 hp 13.0 quarter
S281E - 425 hp 12.5 quarter
Then theres the SR and the S351, those would be the fastest but their so rare its hard to find info on them.
The numbers i gave might be diff from what saleen has because for some reason they keep changing a little over time.