Edelbrock - 3591
Oxygen Sensor - Wideband - Bung - Edelbrock Air-Fuel Ratio Monitor - Each
Replacement Oxygen Sensor Part #3591 For ProFlo1 EFI, Bosch 3-Wire And 18mm Bung. Narrow-Band.
This 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.
- Direct Replacements
- Use To Guide Carburetor Adjustment And Jetting