Edelbrock Performer Series Air / Fuel Ratio Monitor 4087RD Fully Isolated Upper Stick to

Fully Isolated Upper Stick to Reduce Vibration

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No Wrap or Button

Cool transmission or power steering fluid by 30°

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Edelbrock Performer Series Air / Fuel Ratio Monitor 4087RD Fully Isolated Upper Stick toThis Air Fuel Monitor displays the actual air fuel mixture in ratios from approximately 12 to 15: 1. Use it to guide carburetor adjustment and jetting or to improve ignition spark advance curves. Not for use with leaded fuels or alcohol. Edelbrock, 6593, AFR, Air Fuel Ratio, Narrow Band, Oxygen Sensor, O2, LED, Pro Flo, EFI, CarburetedSince 1938, Edelbrock has been committed to making the finest high performance products in the industry. The famous