D-railed

Hey this is my 710 Datsun, its a '77 that I was lucky enough to pick up for a steal! It is an automatic with the L20B engine. I would like to in the long run supercharge it and change out the transmission to a 5-speed. I also know someone here where I live that does computer work who has me really psyched up about installing a 6 to 9 inch touchscreen into the dash and running a computer out of the glove box and then wiring that into a full sound system that I would like to install into the car as well. I already gave it a two tone look with matte black and a burgundy red, although I plan on re-painting at some point. It has at least rolled over a once on the Odometer but not sure how many times unfortunately. Any other ideas you guys have for what I might end up doing to this car beyond what I have thought of? Maybe either cold air intake system or a forced air intake system?

can you supercharge an 77 l20b and how