EZ-Street EFI System

Overview

The EZ-Street EFI replaces a traditional four-barrel carburetor with a fully integrated EFI throttle body that mounts to any intake manifold using a standard 4150-style flange and accepts a round air cleaner. Each unit ships preassembled and pressure-tested and includes the components needed for a straightforward installation and dependable operation.

What’s Included

• Preassembled 4-barrel throttle body with integrated fuel injectors
• Throttle position and manifold pressure sensors
• Fuel rails and mechanical linkage
• Bosch 4.9 wideband O2 sensor
• ECU and CAN-capable communications
• High-quality wiring harness with simple 4-wire hookup
• Detailed installation and startup instructions

Key Features

• Plug-in 4150 fitment: Four-barrel throttle body mounts to standard 4150-style flanges and accepts a traditional round air cleaner.
• Closed-loop, self-learning fuel: Auto-calibrating system and a calibration wizard simplify initial startup — no custom tuning or laptop required for most installs.
• Bluetooth Tuner App: EZ-Street Bluetooth Tuner App (Android initial release; iOS to follow) for setup, monitoring, data logging, and on-the-fly adjustments via phone or tablet.
• Integrated ignition control (optional): Fully programmable ignition when paired with a Pro-Flo distributor (sold separately). Internal coil driver and compatibility with most HEI distributors, ready-to-run distributors, and CDI boxes remove the need for separate ignition modules.
• High-performance capable: Supports up to 650 horsepower with annular-fuel-venturi distribution for consistent cylinder-to-cylinder fuel delivery.
• Modern communications: CAN-enabled ECU for reliable communications and expandability (fans, logging, external modules).

Performance & Control

EZ-Street combines proven annular-fuel-venturi distribution with modern engine management. Closed-loop fueling using the included Bosch wideband provides adaptive fuel control. The Bluetooth app exposes preprogrammed dashboards for fuel and ignition parameters, data logging, fan control, and basic diagnostics.

Installation Notes

• Mount to any intake manifold with a 4150 flange and retain a standard round air cleaner.
• Basic wiring uses a simple 4-wire hookup; follow included instructions for sensor and power connections.
• Optional ignition features require a compatible distributor (Pro-Flo recommended) and additional configuration via the app.
• Initial startup guided by the on-device calibration wizard — the app can be used for further adjustments and monitoring.

Who It's For

Street rods, classic trucks, and any V8 owner who wants reliable EFI performance while keeping the look and fitment of a traditional carbureted setup. Ideal for users who want a simple install with modern control and the convenience of app-based tuning and monitoring.

For exact fitment, wiring diagrams, and distributor compatibility, consult the product manual or contact technical support.