Nick from Classic Concepts has installed several Paxton Superchargers in Superformance Cobra's.
He has taken the Paxton 302 Muatang kit and has adapted new mounting brackets to fit in the Cobra's smaller engine compartment.
As tested with a Ford crate engine 351/385hp, it made 480 rear wheel HP and 570 at the Flywheel. My numbers might be off a few but there close.
Nick is now a dealer for Paxton and can deliver you a complete kit for a Cobra installation.
I attached pic's of a 351 installation.
Tony