Product Summary

326, 350, 389, 400, 421, 428, 455, User Tunable

    Key Specs

    MFG. Part #35980
    Carburetor Flange Type4-Barrel Square Bore
    Injection StyleMulti-port
    User TunableYes
    Self TuningYes

    Need To Know

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    The Edelbrock part # 35980 Pro-Flo 4 EFI System for Pontiac 326-455 C.I. engines is equipped with the latest in technology and features. The EFI system comes complete with a traditional 4150-Style satin finish single plane intake manifold and 35 Lb/Hr injectors capable of 550 HP with 58 p.s.i. fuel pressure. Also included is a plug and play single connection distributor designed to work specifically with Pro-Flo 4 and a made in the USA fully terminated high-quality harness with clearly labeled connections to ensure a hassle-free installation. The new Pro-Flo 4 EFI systems feature an all-new ECU with a faster processor, a waterproof design and measures half the depth of the previous ECU.

    It also has an upgraded Bluetooth chip that is faster, more reliable and will not drop the connection. We've added more features for the advanced tuner giving you control over air-fuel ratios, ignition curve, idle speed, acceleration fuel, coolant fans, Rev limiter while retaining the simplicity Pro-Flo is known for. The key to the system is our exclusive E-Tuner 4 app with dyno developed base calibrations. The E-Tuner 4 app uses a Bluetooth wireless connection to communicate with the ECU's self-learning capability to continually adjust the calibration to get maximum performance. E-Tuner 4 features a simple and easy to use setup wizard to help you get started. Best of all, the E-Tuner 4 app is free and can be downloaded from the Google Play Store, allowing you to use your personal Android-based smartphone or tablet.

    • Flow rate: 35 gpm
    • Pro-Flo 4 does not require laptop tuning
    • Multiple dash displays are included to allow you to monitor engine vitals with an Android smartphone or tablet

    *Note-This kit will require a high-pressure EFI fuel delivery system. Fuel delivery systems are available and sold separately. 35980 manifold height: 6.60". Throttle body height: 2.25"

    CARB Warning

    For race/ off road use or for use on pre-1966 vehicles.

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.


    MFG. Part #35980
    Carburetor Flange Type4-Barrel Square Bore
    Injection StyleMulti-port
    User TunableYes
    Self TuningYes
    Injectors IncludedYes
    Injector Size35 lbs./hr
    Intake Manifold IncludedYes
    Intake Section IncludedComplete
    Metering StyleSpeed density
    CFM1000 CFM
    Throttle Body IncludedYes
    Throttle Body MaterialAluminum
    Throttle Body FinishNatural
    Intake MaterialAluminum
    Intake FinishNatural
    Venturi Quantity4
    Fuel Pump IncludedNo
    Fuel Rails IncludedYes
    Calibration Module IncludedYes
    ECM IncludedYes
    Distributor IncludedYes
    MAP Sensor IncludedYes
    IAC Motor IncludedYes
    IAT Sensor IncludedYes
    TPS Sensor IncludedYes
    Venturi Diameter44.45mm
    NotesIncludes Android tablet with bluetooth connection to ECU for tuning. 625 Horsepower max with gasoline.
    GTIN Code085347359806
    Sold in QuantityKit