air fuel and ignition
Edelbrock 35721 Pro-Flo 4 Standalone ECU and Harness Kit, No Distributor
$1,161
Made to order
Universal fit — no vehicle-specific fitment required.
Free freight ≥ $999 · $40 flat below
About this part
The Pro-Flo 4 Standalone ECU and Harness Kit (PN 35721) provides an economical EFI system solution ideal for legacy Pro-Flo EFI system users or those with an existing yet poor-performing competitor EFI system looking to convert to PF4 EFI. This kit can be used with any application for which Edelbrock offers a Pro-Flo 4 Distributor. 
 
 The Standalone EFI kit comprises the ECU supporting sensors a wide-band O2 sensor and the wiring harness. The ECU controls both fuel and spark and includes a learning capability feature that adjusts the fuel injection calibration to maintain the specified target air-fuel ratio. Minimal setup and tuning adjustments are required with Edelbrock’s E-Tuner Software for IOS and Android tablets and cell phones. The software includes base calibrations for most applications and necessary adjustments for AFR target ignition curve idle speed acceleration tuning coolant fans rev limiter etc.
 
 The customer must purchase a Pro-Flo distributor (specific to the application) and provide the induction system EFI manifold throttle body 1-bar MAP sensor fuel rails injectors pump regulator and lines. Users must refer to the Calibration Matrix in the instructions for the required injector size depending on engine cubic inches and HP requirements. Required injector sizes 29 lb./hr. 35 lb./hr. 42 lb./hr. and 60 lb./hr. Compatibility with forced induction applications requires 80 lb./hr. injectors and a 2-bar MAP sensor.
Specifications
| WIDTH | 10.3 |
|---|---|
| HEIGHT | 7.8 |
| LENGTH | 12.7 |
| PROP65 | Y |
| WEIGHT | 5.35 |
| WARRANTY | 24 Months |
| EMISSIONS | Racing or Pre-Emissions Use Only |
| ATTRIBUTES | CAN-BUS Support:Yes;Fuel Pressure Regulator Included:No;Datalogging Support:Yes;Air Metering Style:Speed Density;Distributor Included:No;Coil Per Cylinder Ignition Support:No;Fuel Pump Included:No;Fuel Injectors Included:No;Intake Manifold Included:No;Cross sell / Upsell Products:All Pro Flo 4 EFi kits All Pro Flo 4+ EFI Kits All EFi Intake Manifolds;Data Logger:Yes;Display Included:No;Drive-By-Wire Capable:No;ECU Included:Yes;EGR:No;Fuel Rails Included:No;Handheld Controller Included:No;High or Low Impedence:High;IAC Motor Included:Yes;IAT Sensor Included:Yes;Injection Style:Sequential Port Injection;Injector Connector Type:Minitimer / EV1;MAP Sensor Included:Yes;Maximum Horsepower with Gas:900;Metering Style:Speed Density;Notes:Tuning supported by E Tuner 4 App;Number of Connectors Supported:8;Oxygen Sensor Included:Yes;Power Adder Compatible:Yes;Prop 65 - Long Label:WARNING: This product can expose you to Tetrabromobisphenol A Nickel Carbon Black Nickel Monoxide 2-Methylimidazole Cobalt Antimony trioxide and Cadmium which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information visit www.P65warnings.ca.gov.;Prop 65 Y/N:Y;Quantity:Sold as a Kit;Related Products:All Edelbrock and FAST EFI Manifolds 22746 Ignition Coil FAST and Edelbrock Throttle Bodies IAC Adapter FAST #307022 Edelbrock #3855 Edelbrock Pico and Siemens Fuel Injectors 29LbHr 35LbHr 42LbHr. 60LbHr 80LbHr Air Cleaners EFI Fuel systems 36031 Edelbrock Fuel Sump 8041 Throttle and Trans Kick Down Bracket;Required Products:Fuel Injection Intake assembly including Fuel Rails and Injectors;Self Tuning:Yes;Throttle Body Included:No;Timing Control Compatible:Yes;TPS Sensor Included:No;Transmission Controller Included:No;User Tunable:Yes;Wiring harness included:Yes |
| PCDB CATEGORY | Air and Fuel Delivery |
| COUNTRY OF ORIGIN | US |
| PART TERMINOLOGY | Fuel Injection System |
| VEHICLE SPECIFIC FITMENT | N |
| INSTALLATION INSTRUCTIONS | https://sdda.semadata.org/Standard/Edelbrock/63-35715 Install Instructions PF4.pdf |
Datasheet — not yet published