why do you guy's like a turbo vs a centrif Supcharger?

You could but whats the point of two sources of boost....You just cramming more air into your motor to allow more fuel to attach to it and have a more expolsive mixture.Just like nitrous,it is not flammable it just really cold allowing a denser mixture of air and allowing more fuel to attach to it.....
Now A turbo with a nitrous (dental grade) plumbed to the drivers helmet and that would be a ride.....:burnout::burnout::burnout:
TXDart

I have seen it done on a Dune Buggy Application Twin Screw Drive Whipple Chargers and Twin Turbo's....... It was a start it up, idle it around show boat. The guy never drove it hard at all but it sure was Shiny!