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HOL-554-113 PART NUMBER
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HOL-550-601 PART NUMBERHOLLEY 550-601 HP EFI ECU & HARNESS KITS$2,521.95
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HOL-550-602 PART NUMBERHOLLEY 550-602 HP EFI ECU & HARNESS KITS$2,608.95GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes Bosch Oxygen Sensor Learn More
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HOL-550-603 PART NUMBERHOLLEY 550-603 HP EFI ECU & HARNESS KITS$2,608.95GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor Learn More
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HOL-550-604 PART NUMBERHOLLEY 550-604 HP EFI ECU & HARNESS KITS$2,521.95
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HOL-550-605 PART NUMBERHOLLEY 550-605 HP EFI ECU & HARNESS KITS$2,521.95
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HOL-554-114 PART NUMBERHOLLEY 554-114 DOMINATOR EFI ECU$2,742.95Integrated electronic transmission control, drive by wire throttle control, dual wideband oxygen sensor capability, extensive amount of inputs and outputs for various combinations. Learn More
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HOL-558-406 PART NUMBER
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HOL-558-411 PART NUMBER
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HOL-558-401 PART NUMBER