You are bidding on a Graham supercharger.  Fits Continental 6 cylinder engine. Carburetor is a Carter WA-1.  Supercharger turns but has been in storage for decades & should be taken a part & cleaned.  This supercharger could be adapted to fit any inline 4, 6 or 8 cylinder engine such as Ford Model A, Ford/Mercury 6, Chevrolet Blue Flame Six, Buick, Oldsmobile & Pontiac 6 & straight 8, Dodge, Plymouth, Chrysler 6 & many more.  If you have any questions please call Kurt at 717-490-1604.