FIT MODLE: Replaces Holley, Edelbrock, Carter AFB, and Autolite style carburetors with 5 3/16" x 5 5/8" bolt pattern, replace part number: 0-1850S. FEATURES: Manual choke (cable actuated - hand controlled) for precise cold start control,Compatible with GM, Chrysler, and Ford A/T kickdown linkage, additional parts may be required. PARAMETERS: Barrel Count: 4, CFM: 600,Model: 4160,Fuel: Gasoline,Primary Jet Diameter: 66,Primary Main Jet: 66,Primary Power Valve:6.5.Part Number:0-1850S. MATERIAL: Made of light-weight diecast aluminum components, the structure is sturdy, not easily deformed, resistant to high temperature and high pressure, and not easy to rust. HIGH QUALITY+SERVICE——Before shipping, we will inspect each product; If you have any questions during use, please feel free to contact us and we will provide assistance within 18 hours. 0-1850S Carburetor 4160 Model 600 CFM 4 Barrel ,Compatible with intake manifold with a Holley square flange know as the 4150 flange. Bolt pattern 5 5/8 x 5 1/8.,Replace#0-1850S (600 CFM)