Overview Reviews Product Description 566-100 Holley EFI Dual Sync Distributor Service Cap and Rotor (Gen 1) Dual Sync Distributor Service Cap and Rotor, These components work with the 565-100 series Dual Sync Distributors. Product Videos Custom Field Product Reviews Write a Review Write a Review × 566-100 Holley EFI Dual Sync Distributor Service Cap and Rotor (Gen 1) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *