DISCOVER THE THUNDERMINGO DIFFERENCE We have been engaged in the field of auto parts for several years, and we aim to bring our customers a better driving experience and maneuverability when using our products right from the start. Carburetor is a sort of rigid mechanical device, which acts core function for engine. We have been devoted to developing the high quality &designed carburetor and many other car accessories. We firmly believe what we are doing now is to bring convenience to all customers, and we are proud of what we do. Fitment: Carter YF Type Carburetor Fits For 1975-1982 Ford 240 250 300 6 CIL engine, it could also be used for most jeep CJ5 Engines & Old Ford with single barrel YF 7109S carburetor Carburetor Fits For Ford RSC-300A, 6307S, 6054, 6055, 6-736, 6056, 6057, 6058, 6059, 6061, 6240, 6241, 6244, 6246, 6308, 6077, 6170, 6349, 6350. Specifications Intake Inner Diameter: 43mm（1.72in） The longest distance of mounting bolts: 85mm（3.35in） The shortest distance of mounting bolts: 58mm (2.28in) Replaces Part Numbers: D5TZ9510AG, D5TZ-9510AG, RSC-300A. Kind Notes The oil channels of carburetors will be blocked without cleaning Please clean up the oil channels and air filters as well as use the clean fuel before installing the carburetors Please confirm your old part number matches up with one of the part numbers above No instruction included and professional installation recommended If you are uncertain about the item, feel free to contact us for confirm.