SKU: EDE35980
UPC: 085347359806
MPN: 35980
The Pro-Flo 4 EFI Kit for Pontiac 326-455 engines represents a modern fuel injection upgrade designed for classic muscle car enthusiasts and restoration specialists seeking reliable performance without sacrificing authenticity. This Edelbrock system transforms traditional carburetor-fed powerplants into fuel-injected machines, delivering consistent 625 horsepower while improving cold-start behavior, throttle response, and drivability across varying ambient conditions. Built for the Pontiac big-block platform, this kit addresses the limitations of aging fuel delivery systems while maintaining visual compatibility with original engine bay layouts.
The Pro-Flo 4 system utilizes Edelbrock's proven sequential multi-port fuel injection architecture, featuring precision injectors mounted directly into individual intake runners for optimized atomization and cylinder-to-cylinder distribution. The kit incorporates a self-tuning ECU that learns engine parameters in real time, eliminating the need for extensive dyno tuning while maintaining factory-grade reliability and sensor feedback integration. Its compact packaging—weighing 37 pounds and measuring 25.5 x 11 x 30.5 inches—fits within typical engine compartments without requiring extensive modifications, while the system's fuel pressure regulator and filtration components ensure longevity even under sustained high-output operation.
This upgrade is ideal for Pontiac 326, 389, 400, 428, and 455 engine builders pursuing street-driven performance without the complexity of full engine bay restructuring. Installation requires basic mechanical aptitude and standard hand tools; the kit includes all necessary fuel lines, connectors, and wiring harnesses for a complete fuel system retrofit. Compatibility with original or modern intake manifolds allows builders to choose between period-correct aesthetics and contemporary airflow optimization, making the Pro-Flo 4 suitable for show cars, weekend warriors, and daily-driven restorations alike.
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