【Direct Replacement】 This brand new 4 Barrel Carburetor.It can directly replace for the Rochester Quadrajet. Replace For 1901-GG 1901R Rochester Quadrajet Carburetor- 4MV.It is designed specifically for automotive use and is not recommended for marine applications. Make sure to match the size of the carburetor you need to replace with this product before purchasing.
【Enhanced Performance】This universal performance carburetor improves throttle response and overall performance across the RPM range. Each carburetor has a uniquely calibrated fuel curve for specific applications. However, due to variations in vehicle displacement, some vehicles may experience a rich fuel mixture, resulting in black smoke from the muffler. You can use the included tool and small copper solid pin to block the air channels to fix this issue.
【Technical Specifications】 The carburetor for Rochester Quadrajet has a CFM (Cubic Feet per Minute) range between 600 and 750, with most rated at 750 CFM. The pre - installed jet sizes are as follows: main jet 185, idle jet 120, auxiliary venturi 7.3mm, venturi (choke tube) 28mm, air correction jets 110, and needle valve 3.3.
【Material】 Made of durable aluminium, precision cast, with a sturdy structure, impact resistance, high pressure and high temperature resistance, and is not easily deformed.