the only roots type blowers i've seen on a contique were hectors on his zetec, and the eaton i saw mounted to a cougar @ SZ 02. The coog was a prototype vehicle, and the blower was not mounted on top of the engine, but down where the battery was just like a vortec.

1999 Silver Frost SVT #609 of 2760 Quaife, lightened SVT Flywheel, SPEC stage II clutch, removed resonator, k&n drop in - various other goodies too.