Came across this link to a company selling electric superchargers. I've heard about people getting increased HP this way on small engines that draw low CFMs through the intake, but for a big V8 I'm doubtful. Is this anything?
http://www.superchargertuning.com/Chevrolet/C%2FK+1500/
http://www.superchargertuning.com/Chevrolet/C%2FK+1500/