Is that yours? Which engine does it have?
Engine is the original straight 6 cylinder, 300 cubic inches.
Has high compression head, 4 barrel carburetor, tuned exhaust header....and the supercharger.
Supercharger, battery both mounted at the back over the axle for better weight distribution.
Lube oil for the supercharger comes from the oil pressure sensor port....waste oil goes back in the crank case.
Test shows 500HP.
Video here: https://www.youtube.com/watch?v=SZoV6E5DDXI
If I won the lottery I would get it done :-)