Possibly ditching TRD S/C for Rotrex SC

[gnegroni]

Question, don't Whipple superchargers provide very similar results with higher efficiencies than the Eatons?

Isn't the packaging nearly identical except for the internals?

Will your bracket fit an M90?

[panic]

Yes, all the Autorotor products (Sprintex, Whipple) are more efficient under boost than any of the M series Eatons - but $$$. You can get a low mileage Eaton for $500.
They also have slightly higher drive load, especially at high vacuum.