Holley Hyperspark Wiring Diagram. Holley sniper efi fuel injection installation manual. Holley efi ignition dual terminator hyperspark. HEI Vortech 6 Holley Motor Life from www.holley.com Hyper spark distributors are the perfect distributor for use with efi systems when controlling timing from the efi controller. The wires are all color coded so. Holley sniper efi with […]