Unique FZX 1250 SU carb and manifold assembly for replacing original carb installed in rubber bumper MGB. This set up was just removed from 1977 MGB for upgrade to older style twin SU. Cast manifold has no cracks, and carburetor worked normally, but needs cleaning. The carb has a manual choke to replace the automatic choke on the original carb. Inexpensive fix for problematic OEM carburetors. Header pipe included.