School me on supercharging a 360

There was a magazine engine build not too long ago. I think it was a mopar action, Oct 2010. They used a very low dollar almost stock 360 with smog heads and 1.88 valves. The result was about 400 h.p and over 450 ft/lbs tq!

They simply bolted on a paxton kit ($3500) and a mighty demon 750 that was built for blow through. The cam was a small comp extreme energy .462/.470 lift 262/270 duration so very good street manners.Crane adjustable rockers were the only other non stock part.

Federal mogul forged pistons and eagle rods were thrown in too but they dont make more power,just help durability.