Overview Reviews Product Description 12-160 Holley EFI Holley EFI Replacement Regulator Kit Retrofit Regulator Kit. Replace or install a regulator in your Holley Retrofit Fuel Pump Module Product Videos Custom Field Product Reviews Write a Review Write a Review × 12-160 Holley EFI Holley EFI Replacement Regulator Kit Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *