− Decrease quantity for Gauge, Sport-Comp, Air/Fuel Ratio, 8:1 to 18:1 Range, 2 5/8 in., Analog, Electrical, Each Quantity + Increase quantity for Gauge, Sport-Comp, Air/Fuel Ratio, 8:1 to 18:1 Range, 2 5/8 in., Analog, Electrical, Each Add to cart