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【Compatible with】 Our carburetor is compatible with Chevy big / small block 327(5.4L) 350(5.7L) 396(6.5L) 400(6.6L) 402(6.6L) 427(7.0L) 454(7.4L) Engines 1966-1973 , Corvettes 1975-1979, and Compatible with GMC Chevrolet Cadillac Trucks 1966-1973 327 350 427 454 with Divorced Mechanical Choke. Before making a purchase, verify that the size of the carburetor you need to replace corresponds to the product. 【Replacement for 】Our 4BBL carburetor replacements for Rochester Quadrajet 1901R 1901-GG 4MV 750 CFM. 1901R, 7026202, 7026203, 7026210, 7027202, 7027203, 7040007, 7040021, 7046904, 7047207, 7047303, 7047305, 7047306, 7047307, 7047316, 7047319, 17054236, 17054709, 170549.This carburetor can range anywhere between 600 - 800 CFM, most are rated 750 CFM. NOTE: This carburetor is designed for automotive use and is not recommended for marine applications. 【Durable Quality】Our carburetor is made of aluminum alloy, which offers high hardness and excellent corrosion resistance, ensuring longevity and reliable performance. 【Package】Carburetor*1, Flange Gaskets*1, filter gaskets*1, Tool for Pushing Plug*1, Plugs*4, jets*8. The size of the Main jet: 185, Idle jet: 120, Auxiliary Venturi: 7.3mm; Choke tube: 28 mm, Correction jets: 110, Needle valve: 3.3. 【Warm Tips】Before placing an order, please verify your car model and the product part number. If you have any problems, get in touch with us and we will serve you within 24 hours. Brand QBselecar Model Carburetor Exterior Aluminum Item Weight 6.91 pounds Manufacturer QBselecar Item model number AF-1079-S-QBF Package Dimensions 13.11 x 10.71 x 6.65 inches Manufacturer Part Number AF-1079-S-QBF