ThermoQuad Carburetors 1971 Pin

Carter Carburetor Company in St. Louis, Missouri, was established in 1909 by William Carter, who started experimenting with carburetors while running a successful bicycle shop. His first cast brass carb could meter and deliver fuel more accurately than many competing units, and easily found a place in the market. Carter became a major OEM supplier to Detroit. In 1971, they introduced the ThermoQuad four barrel. It was available in two sizes, rated according to air flow – 850 and 1000 CFM. The higher flow model was the largest street carburetor in terms of air flow when released, and was a factory part on many of the muscle cars of the era. Gear heads have a love/hate relationship with ThermoQuads, in that they either love or hate them.