Edelbrock Pro-Flo 4 EFI System LS Cathedral Port 550 HP

Upgrading to a modern EFI system improves drivability, performance, and tuning flexibility in LS builds. This Edelbrock Pro-Flo 4 EFI system is designed for Gen III and Gen IV cathedral port LS engines, delivering a complete sequential fuel injection solution with a traditional 4150-style layout. It is ideal for high performance street builds and LS swap applications requiring clean installation and reliable operation.

Features and Benefits:
- Complete EFI system for LS cathedral-port engines 
- Supports up to 550 horsepower 
- Self-learning ECU simplifies tuning 
- Bluetooth-enabled for wireless control 
- Includes Victor Jr. intake manifold

The system supports up to 550 horsepower with 35 lb./hr. injectors and features a Victor Jr. single-plane intake manifold. A compact waterproof ECU with Bluetooth connectivity allows wireless tuning through the E-Tuner 4 app, eliminating the need for a laptop. With self-learning capabilities and full user control of fuel and ignition parameters, this system supports improved throttle response, efficient engine operation, and consistent performance.

Specifications:
- Engine Compatibility: GM LS Gen III/ Gen IV cathedral port
- System Type: Traditional 4150-style EFI kit
- Injection System: Sequential port SEFI
- Fuel Injector Size: 35 lb./hr.
- Maximum Horsepower: 550 HP
- Intake Manifold: Victor Jr., satin finish
- Manifold Height: 4.95"
- Throttle Body Height: 2.25"
- Throttle Body Type: 4-barrel (1.75" bore diameter)
- ECU: Waterproof, high speed processor, Bluetooth enabled
- Fuel Pressure Port: 1/8 27 NPT
- Idle Air Control Motor Included: Yes
- Wiring Harness Included: Yes
- Gaskets Included: Yes
- Quantity: Kit

Vehicle Fitment:
- LS Gen III/IV Cathedral Port Engines 
- LS Swap Applications

Crank Reluctor / Coil Harness Requirements:
- Gen III (24X) engines require 24X coil harness (sold separately)
- Gen IV (58X) engines require 58X coil harness (sold separately)