ROCHESTER Model 4G 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 are used on the primary side only.