Overview Reviews Product Description 534-103 Holley EFI Fuel Injector Retainer Package of 8 injector retainers. Product Videos Custom Field Product Reviews Write a Review Write a Review × 534-103 Holley EFI Fuel Injector Retainer Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *