What is the maximum horsepower this system can support?

The Edelbrock Pro-Flo 4 EFI system, with its 29 Lb/Hr injectors and 58 p.s.i. fuel pressure, is capable of supporting up to 450 horsepower. This makes it suitable for a wide range of performance applications.

Do I need a laptop to tune this system?

No, this Pro-Flo 4 system does not require a laptop for tuning. All adjustments and self-learning calibration are handled wirelessly through the free Edelbrock E-Tuner 4 app on your Android or iOS smart device.

What is included in the Edelbrock Pro-Flo 4 EFI Kit?

The kit includes the single plane intake manifold, 29 Lb/Hr fuel injectors, a dedicated distributor, a fully terminated wiring harness, and the ECU. The E-Tuner 4 app is free to download, or you can purchase kits that include a tablet.

Edelbrock Pro Flo 4 Fuel Injection Kit Seq Port Pontiac 326-455 ci 550 Max HP 2 LbHr Injectors Satin

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Specifications

Brand: Edelbrock
Part #: 35970
UPC: 085347359707

Edelbrock Pro Flo 4 Fuel Injection Kit Seq Port Pontiac 326-455 ci 550 Max HP 2 LbHr Injectors Satin

Name: Edelbrock Pro Flo 4 Fuel Injection Kit Seq Port Pontiac 326-455 ci 550 Max HP 2 LbHr Injectors Satin
Brand: Edelbrock
Price: 3063.32 USD
Availability: InStock

$3063.32

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Edelbrock Pro-Flo 4 EFI System for Pontiac 326-455 CI engines. Satin finish, 29 Lb/Hr injectors, 450 HP capable. Part# 35970.

Key Features

Fits 1958-1979 Pontiac Bonneville, Catalina, Firebird, LeMans, and many other Pontiac models from 326 to 455 cubic inches.
Includes a 4150-style single plane intake manifold with a satin finish.
Equipped with 29 Lb/Hr fuel injectors capable of supporting up to 450 horsepower.
Features a plug-and-play single connection distributor designed for the Pro-Flo 4 system.
Comes with a high-quality, fully terminated wiring harness made in the USA with clearly labeled connections.
New ECU has a faster processor, is waterproof, and features an upgraded, more reliable Bluetooth chip.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

If you're looking to upgrade your Pontiac 326 to 455 cubic inch engine with modern electronic fuel injection, the Edelbrock Pro-Flo 4 EFI System is a solid option. This kit replaces your carburetor and intake manifold with a complete EFI setup designed for a wide range of classic Pontiac applications, including popular models like the Firebird, GTO, and LeMans. It offers improved fuel delivery and tuning capabilities over a traditional carburetor.

This Pro-Flo 4 system features a traditional 4150-style single plane intake manifold with a satin finish, paired with 29 Lb/Hr fuel injectors. These injectors are capable of supporting up to 450 horsepower with 58 p.s.i. of fuel pressure. The kit includes a plug-and-play distributor with a single connection, specifically designed to work with the Pro-Flo 4 system. You also get a high-quality, fully terminated wiring harness made in the USA, with clearly labeled connections to make installation as straightforward as possible. The new ECU is faster, waterproof, and half the depth of previous versions, with an upgraded Bluetooth chip for a more reliable connection to the E-Tuner 4 app.

The real advantage here is the E-Tuner 4 app, available for Android and iOS devices. It connects wirelessly via Bluetooth and uses dyno-developed base calibrations. The app's self-learning capability continually adjusts the calibration for maximum performance, and a simple setup wizard guides you through the initial configuration. Advanced tuners can take control of air-fuel ratios, ignition curves, idle speed, and more, all without needing a laptop. Multiple dash displays are available to monitor engine vitals directly from your smart device. This system does not require laptop tuning.