I think he means the Eaton M90 is used in smaller engine applications vs the Ford M112. I know there are guys over on
www.clubgp.com using port and polished EM90's on their 3.8L V6 L67 and L36's. The advantage of a smaller belt driven blower, such as the M90, on more powerful and larger engines is that full boost is achieved at a much lower level.
Really nice GT, Phat. I think it goes well with your boosted CSVT

How much did that installation cost you, did you make any internal modifications, compression changes, and did you wrench on it yourself ?
Cheers,
Tim