Availability

- In Stock Items. Ships Today. (209) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (651) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (1,150) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Brand
- Summit Racing (15) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- FiTech Fuel Injection (459) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Holley Sniper (105) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Edelbrock (40) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Holley (28) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- FAST (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- MSD Ignition (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Universal
- No (440) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Yes (213) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Make/Model
Make/Engine
Fuel Injection Style
- Multi-port (403) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Throttle body (248) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fuel Injection System Type
- Multi-port Throttle Body (367) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Single 4-Barrel Throttle Body (4150 Flange) (213) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Dual 4-Barrel Throttle Bodies (4150 Flange) (32) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Single 2-Barrel Throttle Body (2300 Flange) (23) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Single 4-Barrel Throttle Body (4500 Flange) (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Single 2-Barrel Throttle Body (2GC Flange) (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Dual 4-Barrel Throttle Bodies (4500 Flange) (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Single 2-Barrel Throttle Body (BBD Flange) (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Single 4-Barrel Throttle Body (Spread-Bore Flange) (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Single 1-Barrel Throttle Body (1100 Flange) (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Velocity Stack Throttle Bodies (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Power Adder Compatible
- Yes (530)
- No (121)
Fuel Type
- GAS (651) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- FLEX (457) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- ALCOHOL (417) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- METHANOL (417) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fuel System Included
- None (280) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In-tank fuel pump module, return (178) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Inline pump kit (88) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In-tank fuel pump module, returnless (80) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Surge tank (20) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Ignition System Included
- None (350) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Coil packs (184) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Ignition box (58) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Distributor (30) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Distributor/Coil (24) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Power Distribution Included
- None (530) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Fuse/Relay block (56) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- PDM (48) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
User Interface Included
- 4.5 in. display (447) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 3.5 in. display (71) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Bluetooth (68) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 5 in. display (28) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 4.4 in. display (15) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 2.5 in. display (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 6 in. display (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- None (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Price Range
Filter Options
Savings Central

Fuel Injection Systems

Individual Parts

Part Groups

Results 651 - 651 of 651

Holley HP EFI Universal Retrofit Engine Management Systems 550-500

Fuel Injection Systems, HP EFI Retrofit, Engine Management, Multi Point, 4-barrel, 4150 Flange, Sensors, Fuel Rails, Regulator, Wire Harness, Kit

Part Number: HLY-550-500

Not Yet Reviewed

Estimated Ship Date: Mar 18, 2026 if ordered today

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Estimated Ship Date: Mar 18, 2026 if ordered today

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