Inboard Motors Mercury Mercruiser 1964-1991 service manual, Page 167Get this manual

Inboard Motors Mercury Mercruiser 1964-1991 service manual, Page 167

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HOLLEY 2V 2300C, 4V 42504160 HOLLEY MAIN METERING

9- lower the secondary valves remain closed, allowing the gine proper air-fuel velocities and distribution lowerlight load operationWhen