You can find general specs and options at the historical archives of Literature (specifically, in the Vehicle Spec Sheets page) at
SOEC.
If you are considering the purchase of a Saleen and want to see how a particular car was shipped, prior 20004, Brad Bowling's
The Saleen Book is a must-have for about 60 bucks from the author.
Always be sure to contact Saleen's Team Saleen before purchase with the full Ford VIN and the Saleen build number to verify its authenticity and to make sure it is what it is represented to be.