Overview Reviews Product Description 17-92 Holley EFI Supercharger Injector Spacer W/EFI Rails This CNC machined billet spacer allows for the installation of 8 additional injectors, ideal for additional fueling in high horsepower blown environments. It is also perfect for those seeking to chill their supercharged fuel injected combinations. Product Videos Custom Field Product Reviews Write a Review Write a Review × 17-92 Holley EFI Supercharger Injector Spacer W/EFI Rails Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *