[jslamerman]

Not trying to be argumentitive, but isnt a roots blower a positive displacement supercharger (as opposed to a paxton/vortec style)?? (I am quite sure that it is). And, secondly, I KNOW that a supercharger excels in the low end torque capablitity on gas engines as opposed to turbochargers, so on that you are wrong. A roots/whipple supercharger is where its at for gas engined tow vehicles, especially at altitude. Worry about driveline issues like ujoints, transmissions, and rearends (which I am thinking Toyota went overkill on on purpose!)