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Ref 550-511-3XX Holley
Brand
Conversion kit to replace a carburetor fuel supply with Holley Sniper EFI electronic fuel injection. Fuel pressure : 4 bar (58.5 psi); Inlet/outlet ports : 9/16-18 female O-ring (AN6); Flange : 4150. Manufacturer part number: 550-511-3XX.

Ref: 550-511-3XX

Available from the manufacturer (24+) → Nov 10, 2026
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Ref 550-511-3PK Holley
Brand
Conversion kit to replace a carburetor fuel supply with Holley Sniper EFI electronic fuel injection. Fuel pressure : 4 bar (58.5 psi); Inlet/outlet ports : 9/16-18 female O-ring (AN6); Flange : 4150. Manufacturer part number: 550-511-3PK.

Ref: 550-511-3PK

Available from the manufacturer (24+) → Nov 10, 2026
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Ref 550-511-3PX Holley
Brand
Conversion kit to replace a carburetor fuel supply with Holley Sniper EFI electronic fuel injection. Fuel pressure : 4 bar (58.5 psi); Inlet/outlet ports : 9/16-18 female O-ring (AN6); Flange : 4150. Manufacturer part number: 550-511-3PX.

Ref: 550-511-3PX

Available from the manufacturer (24+) → Nov 10, 2026
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Ref 550-511-3XD Holley
Brand
Conversion kit to replace a carburetor fuel supply with Holley Sniper EFI electronic fuel injection. Fuel pressure : 4 bar (58.5 psi); Inlet/outlet ports : 9/16-18 female O-ring (AN6); Flange : 4150. Manufacturer part number: 550-511-3XD.

Ref: 550-511-3XD

Temporarily unavailable
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Ref 550-511-3XK Holley
Brand
Conversion kit to replace a carburetor fuel supply with Holley Sniper EFI electronic fuel injection. Fuel pressure : 4 bar (58.5 psi); Inlet/outlet ports : 9/16-18 female O-ring (AN6); Flange : 4150. Manufacturer part number: 550-511-3XK.

Ref: 550-511-3XK

Available from the manufacturer (24+) → Nov 10, 2026
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Ref 550-511-3XR Holley
Brand
Conversion kit to replace a carburetor fuel supply with Holley Sniper EFI electronic fuel injection. Fuel pressure : 4 bar (58.5 psi); Inlet/outlet ports : 9/16-18 female O-ring (AN6); Flange : 4150. Manufacturer part number: 550-511-3XR.

Ref: 550-511-3XR

Available from the manufacturer (5) → Nov 10, 2026
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Ref 550-511-3AX Holley
Brand
Conversion kit to replace a carburetor fuel supply with Holley Sniper EFI electronic fuel injection. Fuel pressure : 4 bar (58.5 psi); Inlet/outlet ports : 9/16-18 female O-ring (AN6); Flange : 4150. Manufacturer part number: 550-511-3AX.

Ref: 550-511-3AX

Available from the manufacturer (20) → Nov 10, 2026
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Ref 550-511-3AE Holley
Brand
Conversion kit to replace a carburetor fuel supply with Holley Sniper EFI electronic fuel injection. Fuel pressure : 4 bar (58.5 psi); Inlet/outlet ports : 9/16-18 female O-ring (AN6); Flange : 4150. Manufacturer part number: 550-511-3AE.

Ref: 550-511-3AE

Available from the manufacturer (17) → Nov 10, 2026
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