^yep, I've had a Buick Park Ave that I turbo'd but it wasn't all that impressive....used a turbo and wastegate from a Caravan. I bought a 10 pound spring for the wastegate. It was still a pretty cool thing to see....an 88 Park ave smoke the tires off, but it wasn't the fastest car I ever drove. The plan was to make it as close to a Grand National as I could(motor wise), but it's not the same motor. Ended up severly twisting the subframe of that car which happened to be rusted and it dropped going down to the lake. Big deal though, bought it for $100
And,I haven't had a supercharged car yet, but I've driven enough of them, from Stock Grand Prix GTPs to 800Hp Lightnings with Whipple Chargers.....even a 69 Chevelle with a BDS 8/71
Although I don't know much about Centrifigul's, they must be pretty good since most of the power adder mustangs are either Turbo or S-Trims/T-trims.
BTW turbo lag is NOT a myth.....obviosly never a truck driver were you.