Pro-Flo 4 EFI XT-Style #35823 Chevy SB W/ Vortec/E-Tec Heads, W/ Tablet, Black

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Pro-Flo 4 XT EFI System for SB Chevy engines with Vortec/E-Tec Cylinder heads. EFI system comes with a powder coated black finish Pro-Flo XT intake manifold and 29 Lb/Hr injectors capable of 450 HP with 58 p.s.i. fuel pressure.
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The Edelbrock part #35823 Pro-Flo 4 XT Sequential Port EFI System for Small-Block Chevy engines with Vortec/E-Tec Cylinder heads has the latest technology and features. The EFI system comes complete with a satin Pro-Flo XT intake manifold and 29 Lb/Hr injectors capable of 450 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 high-quality harness with clearly labeled connections for a hassle-free installation. The new Pro-Flo 4 EFI systems feature an all-new ECU with a faster processor, a water proof design and is half the depth of the previous ECU. It also has an upgraded Bluetooth chip that is faster, more reliable and will not drop 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 an Android based smart phone or tablet. If you don't have a compatible device, then we also offer kits that include a 7" Android tablet with the E-Tuner 4 app pre-installed. Multiple dash displays are included to allow you to monitor engine vitals from an Android smart phone or tablet. Pro-Flo 4 does not require laptop tuning.

Documents & Installation Notes


Availability Available
Application Application Specific
UPC 00085347358236
System Type XT-Style Kit
Gasket Or Seal Included Yes
Quantity Kit
Wiring Harness Included Yes
Fuel Pressure Port 1/8-27 NPT
Bore Diameter 90 mm
Fuel Injector Type 29 lb/hr
Maximum Horsepower 450
Availability Note Available to Order
Warranty 24 Months
Body Material Aluminum
Distributor Cap Included Yes
Fuel Injector Quantity 8
Fuel Injection Type Multi-Port
Fuel Injectors Included Yes
Tunable Yes
Throttle Body Bore 90 mm
Sensors Included Yes
Emissions Code
Hazardous Materials Warning WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • This kit will require a high pressure EFI fuel delivery system.; Fuel delivery systems are available and sold separately.; For the measurements of all Edelbrock manifolds please visit the Manifold Reference Dimensions page.; Manifold Height: A-9.2", B-8.4", C-16.9", D-2.1", E-0 Deg
Finish Powder Coated Black
Throttle Body Type Single Blade