F.A.S.T. EFI SYSTEMS

F.A.S.T. EZ-EFI: Effortless Conversion

The F.A.S.T. EZ-EFI systems (such as the EZ-EFI 1.0 and 2.0) are designed for the enthusiast who wants carburetor looks and simplicity with EFI reliability.

Key Features of the EZ-EFI Line:

• Self-Tuning Mastery: The EZ-EFI systems utilize patented self-tuning technology. The user simply answers a few basic engine questions on the included hand-held display (or touchscreen with the 2.0 version), and the system tunes itself as the vehicle is driven, requiring no laptop or advanced tuning experience.

   

• Carburetor Style: The Throttle Body (TB) features a 4150-style bolt pattern, allowing it to easily bolt onto any existing carbureted manifold while accepting original carb-style throttle linkage.

   

• Power and Support: The EZ-EFI 1.0 supports engines up to $650\text{hp}$, while the EZ-EFI 2.0 is capable of supporting up to $1,200\text{hp}$, making it a robust option for even large-displacement, high-horsepower Pontiac strokers.

• Remote ECU: The EZ-EFI often features a remotely mounted ECU, which isolates the sensitive electronics from the engine's heat and vibration—a key design choice for long-term reliability in a performance environment.

   

Ultimate Control: F.A.S.T. XFI Systems

For the most demanding builds—such as dedicated race cars, forced induction (turbo/supercharged) applications, or those who need to manage complex engine parameters—Butler supplies the advanced F.A.S.T. XFI series.

• Advanced Features: The XFI systems offer ultimate control with features like sequential or bank-to-bank injection, individual cylinder correction, intelligent traction control, and progressive nitrous or boost control.

   

• Custom Tunable: Unlike the self-tuning EZ-EFI, the XFI systems are fully software-tunable using a laptop, allowing professional tuners or experienced enthusiasts to dial in every aspect of the engine's performance.

   

• Upgradeable: Due to the modular design and remotely mounted ECU, upgrading the F.A.S.T. computer is simpler than with systems where the ECU is integrated into the throttle body.

   

The Butler Complete EFI Solution Advantage

The most common failure point in an EFI conversion is the high-pressure fuel supply. Butler Performance eliminates this risk by combining the F.A.S.T. system with a complete, matched fuel delivery setup known as their Complete EFI Solution Kit.

A Butler F.A.S.T. EFI Solution Kit includes:

• F.A.S.T. Throttle Body System (EZ-EFI 1.0 or 2.0).

   

• EFI-Ready Fuel Tank: A brand new, factory-replacement fuel tank engineered with internal baffling to prevent fuel pump starvation under hard acceleration.

   

• In-Tank High-Flow Pump: A pre-installed, high-pressure pump (e.g., $255\text{lph}$) and sender for quiet operation and consistent fuel delivery.

   

• Fuel Line Kit: All necessary high-pressure lines, fittings, and a bypass regulator to ensure the system is leak-free and correctly plumbed from the tank to the throttle body.

   

By choosing a F.A.S.T. system packaged by Butler Performance, the Pontiac enthusiast receives a seamlessly integrated EFI solution that provides the best technology F.A.S.T. has to offer, backed by the deep expertise of the premier Pontiac engine builder.