AED makes a bolt on supercharger for Panther vehicles. I would only recommend their 6psi supercharger which is what most run on a stock bottom end. The 9psi one would require forged internals. Here's the link:
ADTR is a great website for all your perfomance needs on your Vic and the owner Chris is a great guy to do business with. He has an old school '92 Vic that's supercharged running 12s in the quarter mile. The guy knows his stuff on our vehicles. Good luck with your project.
'98 Crown Vic LX
-167k miles and counting. Still used as daily driver.