Air/Fuel Delivery Parts for Carbureted & Fuel Injected Engines

Cram the right air/fuel ratio into your engine and you create incredible horsepower. Summit Racing has everything you need to find that mix, starting with carburetors...

Cram the right air/fuel ratio into your engine and you create incredible horsepower. Summit Racing has everything you need to find that mix, starting with carburetors for street to strip, plus intake manifolds ranging from stock-height replacements to hood-busting tunnel rams. If you’e ready to advance to fuel injection, we’ve got you covered with injectors, manifolds, fuel rails, sensors, and complete performance EFI conversion kits. We’ve also got cold air intakes, fuel pumps, fuel filters, superchargers, turbochargers, nitrous kits, methanol injection kits, hood scoops, and air filters—there’s no excuse for starving...

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Holley Terminator EFI Air Temperature Sensors 554-121

Fuel Injection System Components, Holley EFI, Replacement, Air Temperature, Sensor, Black Plastic Housing, for Terminator EFI System, Each

Part Number: HLY-554-121

3.4 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Holley Terminator X Wideband Adapter Harnesses 558-463

Wiring Harnesses. Holley EFI, Replacement, Wideband O2 Adapter Harness, Terminator EFI Systems, Pre-Terminated, Plug-and-Play, Each

Part Number: HLY-558-463

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Holley Terminator EFI Wiring Harnesses 558-420

Fuel Injection System Wiring Harnesses, Holley EFI, Auxiliary Input/Output Harness, Terminator EFI, Gains 4 Inputs/1 Output, Each

Part Number: HLY-558-420

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Holley Terminator X MAX Engine Management Systems 550-928-2

Engine Management Systems, Terminator X MAX, Sensors, 12.3 in. Pro Dash Controller, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-928-2

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2026

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Estimated Ship Date: Nov 10, 2026

Holley Terminator X MAX Engine Management Systems 550-928-5

Engine Management Systems, Terminator X MAX, Sensors, 5 in. Touch Screen Controller, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-928-5

Not Yet Reviewed

Estimated Ship Date: Wednesday 10/28/2026

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Estimated Ship Date: Wednesday 10/28/2026

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1003

Fuel Injection Systems, Terminator X, Stealth 4150 EFI, Four Injectors, Throttle Body, Speed Density, Aluminum, Gold, Tunable, Kit

Part Number: HLY-550-1003

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Holley Terminator X Engine Management Systems for 1983-1993 MUSTANG - 550-937F-5

Engine Management Systems, Terminator X, ECU, EV1 Injector Harness, Sensors, 5 in. Touch Screen Controller, Ford, Foxbody, TFI, Kit

Part Number: HLY-550-937F-5

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2026

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Estimated Ship Date: Nov 10, 2026

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1002

Fuel Injection Systems, Terminator X, Stealth 4150 EFI, Four Injectors, Throttle Body, Speed Density, Aluminum, Black, Tunable, Kit

Part Number: HLY-550-1002

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Holley Terminator X Max Stealth 4150 EFI Fuel Injection Systems 550-1012

Fuel Injection Systems, Terminator X Max, Stealth 4150 EFI, Four Injector, Throttle Body, Speed Density, Aluminum, Black, Tunable, Trans Control, Kit

Part Number: HLY-550-1012

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Holley Sniper 2 EFI 650 HP Base Fuel Injection Systems 550-510-3XX

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, No Pump, 3.5 in. Display, Kit

Part Number: SNE-550-510-3XX

3.33 out of 5 stars ( 15 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Holley Terminator X MAX Engine Management Systems 550-928-1

Engine Management Systems, Terminator X MAX, Sensors, 6.86 in. Pro Dash Controller, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-928-1

Not Yet Reviewed

Estimated Ship Date: Nov 2, 2026 if shipped by air

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Estimated Ship Date: Nov 2, 2026 if shipped by air

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1005

Fuel Injection Systems, Terminator X, Stealth 4150 EFI, Eight Injectors, Throttle Body, Speed Density, Aluminum, Black, Tunable, Kit

Part Number: HLY-550-1005

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Holley Terminator X Stealth 4150 2X4 EFI Fuel Injection Systems 550-1074

Fuel Injection Systems, Terminator X, Stealth 4150, 2x4 EFI, Eight Injector, Dual Throttle Body, Speed Density, Aluminum, Shiny, Tunable, Kit

Part Number: HLY-550-1074

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Nov 9, 2026 if shipped by air

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Estimated Ship Date: Nov 9, 2026 if shipped by air

Holley Terminator X MAX Engine Management Systems 550-931-5

Engine Management Systems, Terminator X MAX, Analog, Sensors, 5 in. Touch Screen Controller, Chevy, LS, 4.8-6,2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-931-5

Not Yet Reviewed

Estimated Ship Date: Nov 2, 2026 if shipped by air

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Estimated Ship Date: Nov 2, 2026 if shipped by air

Holley Terminator X MAX Engine Management Systems 550-931-2

Engine Management Systems, Terminator X MAX, Analog, Sensors, 12.3 in. Pro Dash Controller, Chevy, LS, 4.8-6,2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-931-2

Not Yet Reviewed

Estimated Ship Date: Nov 2, 2026 if shipped by air

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Estimated Ship Date: Nov 2, 2026 if shipped by air

Holley Terminator X MAX Engine Management Systems 550-931-1

Engine Management Systems, Terminator X MAX, Analog, Sensors, 6.86 in. Pro Dash Controller, Chevy, LS, 4.8-6,2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-931-1

Not Yet Reviewed

Estimated Ship Date: Nov 2, 2026 if shipped by air

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Estimated Ship Date: Nov 2, 2026 if shipped by air

Holley Terminator X MAX Engine Management Systems 550-928-B

Engine Management Systems, Terminator X MAX, Sensors, Bluetooth Module, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-928-B

Not Yet Reviewed

Estimated Ship Date: Nov 2, 2026 if shipped by air

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Estimated Ship Date: Nov 2, 2026 if shipped by air

Holley Terminator X MAX Engine Management Systems 550-917-B

Engine Management Systems, Terminator X MAX, Sensors, Bluetooth Module, Chevy, LS, 4.8-6.0L, 1x Cam, 24x Crank, Kit

Part Number: HLY-550-917-B

Not Yet Reviewed

Estimated Ship Date: Nov 5, 2026

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Estimated Ship Date: Nov 5, 2026

Holley Terminator X MAX Engine Management Systems 550-931-B

Engine Management Systems, Terminator X MAX, Analog, Sensors, Bluetooth Module, Chevy, LS, 4.8-6,2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-931-B

Not Yet Reviewed

Estimated Ship Date: Nov 2, 2026 if shipped by air

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Estimated Ship Date: Nov 2, 2026 if shipped by air

Holley Sniper 2 EFI 650 HP Base Fuel Injection Systems with Power Distribution Module 550-511-3PX

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, No Pump, PDM, 3.5 in. Display, Kit

Part Number: SNE-550-511-3PX

3.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Holley Terminator X Stealth 4500 2x4 EFI Fuel Injection Systems 550-1080

Fuel Injection Systems, Terminator X, Stealth 4500, 2x4 EFI, Eight Injector, Dual Throttle Body, Speed Density, Aluminum, Shiny, Tunable, Kit

Part Number: HLY-550-1080

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026 if shipped by air

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Estimated Ship Date: Nov 9, 2026 if shipped by air

Holley Terminator X Stealth 4150 58X LS EFI Fuel Injection Systems 550-1061

Fuel Injection Systems, Terminator X, Stealth 4150, 58X LS EFI, Four Injector, Throttle Body, Speed Density, Aluminum, Black, Chevy, 4.8-7.0L, Kit

Part Number: HLY-550-1061

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026 if shipped by air

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Estimated Ship Date: Nov 9, 2026 if shipped by air

Holley Terminator X Stealth 4150 24X LS EFI Fuel Injection Systems 550-1020

Fuel Injection Systems, Terminator X, Stealth 4150, 24X LS EFI, Four Injector, Throttle Body, Speed Density, Aluminum, Shiny, Chevy, 4.8-7.0L, Kit

Part Number: HLY-550-1020

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2026

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Estimated Ship Date: Nov 10, 2026

Holley Terminator X Stealth 4150 2X4 EFI Fuel Injection Systems 550-1076

Fuel Injection Systems, Terminator X, Stealth 4150, 2x4 EFI, Eight Injector, Dual Throttle Body, Speed Density, Aluminum, Gold, Tunable, Kit

Part Number: HLY-550-1076

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026 if shipped by air

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Estimated Ship Date: Nov 9, 2026 if shipped by air

Holley Terminator X Max Stealth 4150 EFI Fuel Injection Systems 550-1015

Fuel Injection Systems, Terminator X Max, Stealth 4150 EFI, Eight Injector, Throttle Body, Speed Density, Aluminum, Black, Tunable, Trans Control, Kit

Part Number: HLY-550-1015

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2026

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Estimated Ship Date: Nov 10, 2026

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