Overview Reviews Product Description 553-133 Holley EFI Holley EFI Fuel Level Gauge Unlike the other Holley EFI gauges which daisy chain together, the fuel level gauge wires directly to the sending unit, eliminating the need for custom ECU configuration. Product Videos Custom Field Product Reviews Write a Review Write a Review × 553-133 Holley EFI Holley EFI Fuel Level Gauge Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *