i have for sale a 250 B&M supercharger for a STD Low deck BBC. This unit has around 30 hrs since last serviced 9 years ago. It has been on the shelf for the last 8 years. It has been freshly polished. The 750 holley DP's seem fine as they were drained prior to storage. Just needs blower base gasket, carb adapter plate gasket, blower snout cover gasket. (was taken apart to be polished). This unit made 8 lbs boost on my old 509 with 320 CC heads with a 236 242 Duration cam at 5200 rpm. Strips are pretty tight as i can barely get .003 feeler between the case and rotor tips.
included in the sale are the intake, blower,carb adapter plate, 2/750 DP carbs, Billet air cleaner pulleys , belt and linkage..