Monthly Archives: January 2022

Holley-EFI-550-501-HP-EFI-Universal-Retrofit-Multi-Point-Fuel-Injection-Kit-01-aw

Holley EFI 550-501 HP EFI Universal Retrofit Multi-Point Fuel Injection Kit

HP EFI Universal Retrofit Multi-Point Fuel Injection Kit. HP EFI Universal Retrofit Multi-Point Fuel Injection Kit; For 4500 Carb Style Intake Manifold; Incl. Injector Bungs/Fuel Rails/Wiring/ECU/Sensors/Throttle Body. WARNING CA Proposition 65: No. Utilize A Laptop Or Hand Held Tuner. Configurable User Password Protection. Plug And Play Control Of Factory Engines. Internal Data-Logging Is Standard. 4 Stage Progressive Nitrous Control. Do

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