Edelbrock EFI Conversion Kit Pro-Flo 4 Cathedral Port Victor Jr 550HP Max Chevrolet LS Gen III/IV

With a 4150 style intake, high flow injectors and convenient tuning options, The Edelbrock (35740) Pro-Flo 4 Sequential EFI System for Chevrolet LS Gen III/IV engines manages up to 550 horsepower and offers various features to distinguish this EFI system from the rest.

Features and Benefits:
- Sequential Fuel Injection system
- Traditional style intake and throttle body
- Capable of 550 horsepower
- Complete tuning control
- App-based tuner connects to ECU wirelessly
- Waterproof, compact, and self-learning ECU

The satin finish Victor Jr. cathedral-port single plane intake manifold houses 29 Lb/Hr injectors which are capable of 550 horsepower with 58 psi of fuel pressure. An all-new compact and waterproof ECU measures half the depth of the previous version. The ECU houses a faster processor, and a faster Bluetooth chip that is more reliable and will not drop connection. For plug and play convenience the ECU has dyno-proven base tunes built-in and is self-learning, offering no-fuss drivability out of the box. For the advanced tuner, this system can also give you complete control over air-fuel ratios, ignition curve, idle speed, acceleration fuel, coolant fans, and rev limiter while retaining the simplicity Pro-Flo is known for.

The key to the system is Edelbrock’s exclusive E-Tuner 4 app. Your mobile device can also now talk directly to your LS’ ECU, offering on-the-go tuning possibilities. The E-Tuner 4 features an easy-to-use setup wizard to help you get started, as well as multiple dash displays for monitoring engine vitals and performance. Best of all, the E-Tuner 4 app is free and can be downloaded from the Google Play Store or Apple Store, allowing you to use your personal Android-based or iOS-based smartphone or tablet. Includes instructions and QR code to download the app from the iOS Apple Store of the Android Google Play Store. This EFI kit (35740) from Edelbrock pulls out all the stops for exceptional tunability and drivability.

Tech Tip: This kit will require a high-pressure EFI fuel delivery system. Fuel delivery systems are available and sold separately. This LS kit also requires a coil harness which is sold separately; your LS’ crank trigger will determine which harness you'll need. Gen III engines have the 24X reluctor design, while newer Gen IV engines have the 58X.

Edelbrock Pro Flo 4 EFI Kit Specs:
System Type: Traditional 4150-Style Kit
Fuel Pressure Port: 1/8-27 NPT
Idle Air Control Motor Included: Yes
Gasket Or Seal Included: Yes
Quantity: Kit
Wiring Harness Included: Yes
Distributor Cap Included: Yes
Bore Diameter: 1.75
Fuel Injector Type: 35 lb/hr
Maximum Horsepower: 550
35740 manifold height: 7.40"
Throttle body height: 2.25"
Finish: Satin
Throttle Body Type: 4 Barrel