Holley HP EFI Universal Retrofit Engine Management Systems 550-500

Holley HP EFI Universal Retrofit Engine Management Systems 550-500

HLY-550-500

Not Yet Reviewed

Part Number: HLY-550-500

Estimated Ship Date: Nov 10, 2026

$3,949.95

Results 1 - 12 of 12

Fuel Pump, Phantom 200, Electric, In-Tank, 90 psi, 90 gph/340 lph, for Return Systems/OEM Tanks 6-12 in. Deep, -6 AN Inlet/Outlet, Gasoline, Each

Part Number: AEI-18688

4.3 out of 5 stars ( 43 )

Estimated Ship Date: Monday 11/9/2026 if shipped by air

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Estimated Ship Date: Monday 11/9/2026 if shipped by air

Fuel Pumps, Sniper, In-Tank, Retrofit, Low-Profile, 12V, 90 gph, 1/4 in.-NPT, Female Ends, 7 in. Deep Tank Minimum, E85 Compatible, Each

Part Number: SNE-19-360

3.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 11/9/2026 if shipped by air

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Estimated Ship Date: Monday 11/9/2026 if shipped by air

Distributor, EST, Magnetic Pickup, Computer Controlled Advance, Chevy, 5.0, 5.7, 7.4L, Each

Part Number: SUM-850200

3.86 out of 5 stars ( 56 )

Estimated Ship Date: Monday 11/9/2026 if shipped by air

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Estimated Ship Date: Monday 11/9/2026 if shipped by air

Fuel Pumps, Sniper, In-Tank, Retrofit, Low-Profile, 12V, 90 gph, 6 psi, 1/4 in.-NPT, Female Ends, 7 in. Deep Tank Minimum, E85 Compatible, Each

Part Number: SNE-19-365

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Nov 13, 2026 if ordered today

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Estimated Ship Date: Nov 13, 2026 if ordered today

Distributor, Pro-Billet, EST, Computer Controlled Advance, Magnetic Pickup, Chevy, 5.0, 5.7, 7.4L, Each

Part Number: MSD-8366

3.33 out of 5 stars ( 15 )

Estimated Ship Date: Monday 11/9/2026 if shipped by air

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Estimated Ship Date: Monday 11/9/2026 if shipped by air

Fuel Pumps, Sniper, In-tank, Fuel Cell, EFI, 12V, 90 gph, -6AN Ends, Male Thread, No Return, 12-bolt Fill, E85 Compatible, with Bracket, Each

Part Number: SNE-19-385

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/9/2026 if shipped by air

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Estimated Ship Date: Monday 11/9/2026 if shipped by air

Fuel Pump, Phantom, Electric, In-Tank, 340lph, 60 psi, -6AN Outlet, Female Threads, Each

Part Number: AEI-18329

Not Yet Reviewed

Estimated Ship Date: Monday 11/9/2026 if shipped by air

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Estimated Ship Date: Monday 11/9/2026 if shipped by air

Distributor, Flame-Thrower EST, Magnetic Pickup, Computer Controlled Advance, Black Cap, Chevy 1987-95, Each

Part Number: PNX-D1020

4.56 out of 5 stars ( 9 )

Estimated Ship Date: Monday 11/9/2026 if shipped by air

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Estimated Ship Date: Monday 11/9/2026 if shipped by air

Wiring Harnesses, Holley EFI, HEI Distributor, Adapter Harness, Small Cap, Computer Controlled, for Avenger, HP, Dominator EFI Systems, Each

Part Number: HLY-558-304

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/9/2026 if shipped by air

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Estimated Ship Date: Monday 11/9/2026 if shipped by air

Distributor, EST, Magnetic Pickup, Computer Controlled Advance, Chevrolet, Each

Part Number: ACC-59131

2.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 11/9/2026 if shipped by air

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Estimated Ship Date: Monday 11/9/2026 if shipped by air

Distributor, EST, Electronic Advance, Black Cap, Chevy, 4.4, 5.0, 5.7, 7.4L, V-8, Each

Part Number: DUI-12620BK

4.41 out of 5 stars ( 51 )

Estimated Ship Date: Monday 11/9/2026 if shipped by air

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Estimated Ship Date: Monday 11/9/2026 if shipped by air

Digital Dashboard Displays, 7 in., LCD Display, Customizable, GPS, CAN I/O Extender, Holley EFI Cable, Wiring Harness, Each

Part Number: PTD-S0216

Not Yet Reviewed

Estimated Ship Date: Monday 11/9/2026 if shipped by air

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Estimated Ship Date: Monday 11/9/2026 if shipped by air

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