Butler Complete EFI Solutions

The shift from the carburetor to Electronic Fuel Injection (EFI) is the single greatest modern upgrade an enthusiast can make to a classic Pontiac V8. EFI delivers reliable starts, crisp throttle response, improved fuel economy, and consistent performance regardless of temperature or altitude—qualities the vintage carburetor simply cannot match.

However, converting a classic car to EFI involves more than just swapping the throttle body; it requires a complete, high-pressure fuel delivery system. Butler Performance eliminates the complexity by offering Complete EFI Solutions that are truly turn-key, bundling the latest self-learning EFI systems with a fully integrated, high-pressure fuel tank solution.

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EFI Solutions- Master Series

Need a complete EFI and Tank setup for your Pontiac? We have put together complete solutions for converting your car from Carb to EFI including EFI, Tank, in-tank pump, and all the necessary lines and fittings needed.

EFI Solutions- Ignition Series

Full EFI solutions with complete ignition systems. Take the guess work out of the timing options for the EFI systems. Butler has years of experience in Pontiac EFI timing. Let us make the kit...More Details »

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More About Butler Complete EFI Solutions

The Complete Solution: Beyond the Throttle Body

The critical factor that separates a frustrating install from a seamless upgrade is the fuel delivery system. EFI requires $40\text{psi}$ to $60\text{psi}$ of fuel pressure, which traditional low-pressure mechanical pumps and stock fuel lines cannot provide.

Butler Performance addresses this by packaging the entire solution:

EFI System of Choice: The kit centers around a self-learning EFI system from top brands like Holley Sniper, FiTech Go EFI, FAST EZ-EFI, or Edelbrock ProFlo.
EFI Ready Fuel Tank: A brand new, factory replacement fuel tank that is engineered for EFI.
Complete In-Tank Fuel System: This is the game-changer. It includes a modern high-flow (e.g., $255\text{lph}$ ) in-tank electric fuel pump, a fuel sender (often $0\text{-}90$ ohm), and internal baffling to prevent fuel pump starvation under hard acceleration or cornering. The in-tank design keeps the pump cool and quiet.
Fuel Line Kit: All the necessary high-pressure fuel lines, fittings, and a bypass regulator are included to connect the new tank to the EFI system.

This comprehensive approach ensures the entire conversion, from the gas cap to the throttle body, is correctly matched and rated for high-pressure fuel injection.

TBI vs. Multi-Port: Power Options

Butler Complete EFI Solutions cater to different power levels and aesthetic preferences:

System Type	Induction Style	Power Range	Key Feature
Throttle Body Injection (TBI)	Carburetor Look	Up to $650\text{hp}$ (Holley Sniper)	Bolts directly onto existing 4-barrel intake manifold; retains the classic carburetor look.
Multi-Port Injection (MPFI)	Modern Runner Style	$550\text{hp}$ up to $700\text{hp}+$	Uses a dedicated EFI manifold (e.g., Edelbrock ProFlo 4) for optimal air/fuel distribution per cylinder.
Tri-Power EFI	Factory Tri-Power Look	High Street Power	Butler Exclusive: Utilizes a stealthy EFI throttle body under the Tri-Power air cleaner for a factory appearance with modern performance.

The Power of Self-Learning & Integrated Ignition

Modern EFI systems simplify tuning, making them accessible to the average enthusiast:

Self-Tuning: Systems like the Holley Sniper or FAST EZ-EFI use a wide-band oxygen sensor to read exhaust gases and automatically adjust the air/fuel map as you drive. This eliminates the need for expensive dyno tuning for most street applications.
Ignition Integration (Ignition Series): Butler also offers "Ignition Series" kits which include a complete, matched ignition system (e.g., Holley HyperSpark or MSD) that integrates seamlessly with the EFI ECU. This allows the ECU to control ignition timing, further optimizing performance and efficiency.

By leveraging Butler Performance's expertly curated EFI solutions, Pontiac owners can enjoy the reliability of a modern vehicle while retaining the raw, massive torque and classic appeal of their V8 engine.