ROCHESTER 4GC 4-Barrel: Description

Four barrel downdraft type with two primary barrels each supplemented by a secondary barrel which begins operation at approximately half-throttle. The primary and secondary sections have independent fuel bowl and float systems (twin floats), idle systems (no idle adjustment provided for secondary side), main metering and discharge systems and interconnected throttle valves. An accelerating pump, vacuum piston controlled power valve, and choke valve with automatic choke control are used on the primary side only. Some carburetors have special features requiring different adjustments as listed under Adjustments.