SU carburetors have been popular since the end of World War II. Although they were used widely before the war, the increased production required by the conflict made their products less expensive and more suitable to postwar automobiles. So today the SU carb can be found on MG, Rolls Royce, Bentley, Alvis, and many other makes from the late 1940’s all the way to the 1980’s-literally millions of them. And like any other device or component, they age and wear out in service.
SU Carburetors – Send them out or rebuild them yourself?
MGB tips mods and maintenance 