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EDELBROCK EFI SYSTEMS
When choosing to upgrade your engine to modern fuel injection, look no further than Edelbrock's Pro-Flo 4 EFI Systems. Pro-Flo 4 is not just a replacement for your carburetor, it's a completeengineered system that provides the ultimate in performance, drivability, quality and value. These easy to use, self-learning EFI systems feature an all new ECU pre-loaded with 80 dyno-tuned calibrations that support popular engine configurations up to 800 hp. Combined with the enhanced E-Tuner 4 App's easy to use setup wizard; you get plug and play performance without the need of a laptop or costly dyno tuning sessions. These EFI systems are the most complete systems available!

HUGE BENEFITS

SMOOTHER
COLD STARTS

With Pro-Flo 4's computer controlled multi-port injection, hard starts are a thing of the past.

2-YEAR
WARRANTY

All Pro-Flo 4 EFI systems are warranted directly through Edelbrock for peace of mind!

IMPROVED
FUEL ECONOMY

PF4 EFI has the potential for improved fuel economy when upgrading from a carburetor.

Pro-Flo 4 EFI Systems

PRO-FLO 4® EFI SYSTEMS

Pro-Flo 4 offers the ultimate in performance and power with the precise efficiency only a fully sequential port EFI system can deliver. A fully sequential port EFI system delivers the fuel into the intake air flow right at the port with an injector for each cylinder, allowing for better fuel atomization and distribution.
    EXCITING NEW FEATURES:
  • New lower price - Complete kits starting at $1695
  • Now available for popular LS Platform
  • The most complete EFI Systems under one part number
  • Improved Bluetooth wireless technology

EFI FUEL SYSTEMS & COMPONENTS

Browse through several EFI Fuel Systems, components andreplacement parts including O2 Sensors to ensure your Edelbrock EFI System is always running top Notch. These Universal SumpFuel Kits are designed to provide the necessary high fuel pressure required for EFI applications in vehicles equipped with an existing low pressure carbureted fuel system.
    FEATURES INCLUDE:
  • Complete self-contained system- Easy to install under hood
  • Delivers constant fuel pressure with no fuel return line, external fuel pressure regulator or fuel tank modifications
  • Compatible with the existing factory fuel tank and pump
EFI Fuel Systems and Components
EFI Fuel Systems and Components

EFI FUEL SYSTEMS & COMPONENTS

Browse through several EFI Fuel Systems, components andreplacement parts including O2 Sensors to ensure your Edelbrock EFI System is always running top Notch. These Universal SumpFuel Kits are designed to provide the necessary high fuel pressure required for EFI applications in vehicles equipped with an existing low pressure carbureted fuel system.
    FEATURES INCLUDE:
  • Complete self-contained system- Easy to install under hood
  • Delivers constant fuel pressure with no fuel return line, external fuel pressure regulator or fuel tank modifications
  • Compatible with the existing factory fuel tank and pump
Performance Intake Elbows

INTAKE ELBOWS

Edelbrock Throttle Body Elbows are the best way to adapt LS1, LS2 and Ford 5.0L-based throttle bodies to EFI manifolds with traditional square-bore mounting pads. An internal divider optimizes flow quantity and distribution into the manifold and they can be mounted forward, backward, or sideways on Victor EFI square-bore manifolds.
    FEATURES INCLUDE:
  • 3 versions allow EFI tuners to position the throttle body low for hood clearance or higher for maximum airflow
  • Available in satin or black powder coated finish
  • Elbows include a universal throttle cable bracket

THROTTLE BODIES

Edelbrock throttle bodies are available in several sizes to deliver increased performance for a wide variety of applications. Smaller sizes are slightly larger than stock and are a great first step for stock or mildly modified engines. Larger sizes are for more radical, high-output engine combos and in most cases, require port matching of the manifold for proper fitment and performance.
    FEATURES INCLUDE:
  • Throttle blades are staked to the shaft for secure fit and finish
  • Throttle shafts ride on sealed bearings for smooth operation
  • New throttle position sensor pre-installed on most apps
  • Throttle body casting is machined and assembled in the USA
Performance Throttle Bodies
Performance Throttle Bodies

THROTTLE BODIES

Edelbrock throttle bodies are available in several sizes to deliver increased performance for a wide variety of applications. Smaller sizes are slightly larger than stock and are a great first step for stock or mildly modified engines. Larger sizes are for more radical, high-output engine combos and in most cases, require port matching of the manifold for proper fitment and performance.
    FEATURES INCLUDE:
  • Throttle blades are staked to the shaft for secure fit and finish
  • Throttle shafts ride on sealed bearings for smooth operation
  • New throttle position sensor (TPS) pre-installed on most apps
  • Throttle body casting is machined and assembled in the USA

EFI FORUM {SOFTWARE & SUPPORT}

Edelbrock's EFI Forum offers software downloads and technical support for both NEW products as well as LEGACY products. Legacy support covers Pro-Flo® 1, 2 & 3 as well as Pro-Flo® XT EFI systems. Use the EFI forum to locate calibrations for common AMC, Chevy, Chrysler and Ford applications.

EXCLUSIVE E-TUNER 4 APP

Pro-Flo 4 Electronic Fuel Injection also gives you the ultimate control of your engine when using the Advanced Tuning features. These features give you the ability to easily adjust your ignition curve specifically for your engine setup, eliminating the hassle, complexity and limitations of the standard distributor advance mechanism. This type of control will result in a smoother idle, faster acceleration, better peak power, improved fuel economy and the ability to control detonation, all with the touch of your finger in the E-Tuner 4 app.

E-Tuner 4 App is available free from Google Play Store, Android devices will receive automatic App update notifications as Edelbrock releases updates.

WHY IS PRO-FLO 4 EFI BETTER?

Throttle Body style EFI systems feature fuel rails and injectors mounted directly to a throttle body. This design delivers the fuel into the air flow stream in the plenum similar to a carburetor. It’s the most universal type of Electronic Fuel Injection system, but it’s not ideal for high performance engines. Mixing fuel this way allows for it to puddle and condense in the plenum of the intake manifold, a recipe for hard cold starts. Another drawback is the delayed throttle response since the fuel must travel through the intake manifold to the combustion chamber. This can also cause the air/fuel mixture to separate as it flows to the cylinders, resulting in an uneven mixture between cylinders. Typically, the center cylinders run slightly richer than the outer cylinders, hindering tuning for peak fuel economy and peak performance. The OEM’s only utilized throttle body style injection for 9 years before transitioning to sequential port fuel injection for improved drivability and efficiency.


Pro-Flo 4 EFI systems feature a high performance Edelbrock intake manifold with a 1,000 cfm throttle body, fuel rails and individual injectors for each cylinder. Key to the improved performance of a system like this is the fuel injector location, which is at the end of the runner on the intake manifold right before the air flow stream enters the combustion chamber. This location provides a more efficient mixture control thats unaffected by varying intake manifold runner temperatures and length. The fuel injector is also timed with the intake valve opening, giving the ultimate control and is the most efficient way to deliver fuel into your engine. This design produces the best fuel atomization and precise distribution to each cylinder for the ultimate performance.

PRO-FLO 4 EFI BETTER

FUEL
INJECTION
SYSTEMS!

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