You will get more torque with the blower and it should be more efficient than the turbo as well. It will also be nicer on your engine/gearbox than a turbo will. However I think with a properly setup turbo the car should make more power than it would a blower. It's a big job though, especially if there is no off the shelf kit available yet. You will need a stack of custom parts made and you will have to do something about the compression too. It would be damn cool though