Lets see those SUPERCHARGER A-Bodies
I don't get the 300 hp rating you are giving your 408. Put a good cam in it and you should easily get 450 hp before boost. I went to Steve Morris Racing to design my cam. It was matched to my entire car including me in it. A little more expensive going that route but I know the real potential of my setup. My comp ratio is 8.2 to 1 static and I am well over 400 hp before boost and depending on the amount of boost I use I can get up to 650 to 700 hp.
Jack