Edelbrock 35880 Pro-Flo 4 EFI XT Kit for Chevy Big-Block Rectangle Port

The Edelbrock Pro-Flo 4 XT EFI Kit delivers complete bolt-on electronic fuel injection for rectangular-port Big-Block Chevrolet engines. This comprehensive system features a satin-finished XT intake manifold with a large plenum and long tapered runners, engineered for optimal airflow and performance. The kit arrives ready to install with high-flow 60 lb/hr injectors, fuel rails, and a 90mm throttle body preassembled at the Edelbrock factory.

Key Features:

• Rated at 825 horsepower maximum with included 60 lb/hr injectors
• Self-Calibrating Fuel Map Technology learns and adjusts automatically
• Wide-Band O2 Closed Loop Mixture Control for precise air-fuel ratios
• Low-profile ECU with upgraded processor and enhanced Bluetooth connectivity
• Includes Android tablet with preinstalled E-Tuner app for setup and monitoring
• Single-connection distributor designed specifically for fully sequential port injection
• Complete sensor package including wide-band O2 sensor and all wiring harnesses
• No laptop tuning required—Setup Wizard guides you through initial configuration

Advanced Tuning Control:

• Real-time adjustment of air-fuel ratios and ignition timing
• Idle speed, acceleration fuel, and rev-limiter settings
• Fan control and multiple performance display options
• Monitor engine parameters in real-time from inside or outside the vehicle
• Self-learning ECU continuously optimizes calibration as you drive

This complete EFI system combines modern fuel injection technology with user-friendly operation, requiring only minimal setup and tuning adjustments. Base calibrations are provided in the software, and the ECU automatically refines performance by maintaining your specified target air-fuel ratio during operation.

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