I have never run a turbo or a centrifgul blower. I would think a centrifugul blower would lag just like a turbo untill you get the rpm's up maybe not as bad. But that's not all bad because of the low end grunt of the six. I would think you could the cost of a centrifgul blower over a turbo because of a lot of varibles like a header, intake, piping, fuel system, blow off valve, waste gate, MSD boost box.
I looked into a turbo setup and doing all the fabrication myself for a race motor and it was around $3000.00 this is just the turbo setup. I'm going to stick with my nitrous setup for right now. A 100 shot of spray will do wonders to a properly tuned motor.
Steven
www.mighty6.com