Edelbrock Performer Series Air / Fuel Ratio Monitor Oxygen Sensor Replacement NG90 A dwell control circuit ensures

A dwell control circuit ensures long

1997-1999 Ford Expedition

18/23 Degree Head

The unit can be rotated 180

15 in Diameter Fans

Edelbrock Performer Series Air / Fuel Ratio Monitor Oxygen Sensor Replacement NG90 A dwell control circuit ensuresThis 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. Since 1938, Edelbrock has been committed to making the finest high performance products in the industry. The famous Edelbrock Intake Manifold, Edelbrock Aluminum Cylinder Heads and Edelbrock Water Pumps have become