Big3Racing Flex Fuel Sensor Kit

B3R flex fuel sensor kit for Holley EFI, includes harness and GM flex fuel sensor. 

Use these kits to add the ability to run anywhere from straight gasoline to straight ethanol as well as reveal the true power potential of your setup.  Forced induction scenarios especially benefit from the use of ethanol, and these allow you to seamlessly switch between gasoline and ethanol without having to monitor your fuel content or reflash your tune