# Edelbrock Pro Flo 4 EFI System Seq Port LS Gen III/IV Victor Jr Cath Port 475 Max HP 29lb/hr The Edelbrock part #35700 Pro-Flo 4 Sequential Port EFI System for Chevrolet LS GEN III/IV engines is equipped with the latest in technology and features. The EFI system comes complete with a traditional 4150-Style satin finish Victor Jr. cathedral port single plane intake manifold and 29 Lb/Hr injectors capable of 475 HP. The new Pro-Flo 4 EFI systems feature an all-new ECU with a faster processor, a water proof 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 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 the maximize performance of your engine. 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 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 and performance from your Android smart phone or tablet.Pro-Flo 4 does not require laptop tuning. - New ECU Preloaded w/80 Dyno-Tuned Calibrations This Part Fits: Year Make Model Submodel 2001-2004 Avanti II Base 2004-2007,2009-2015 Cadillac CTS V 2007-2009 Chevrolet Avalanche LS 2007-2009 Chevrolet Avalanche LT 2007-2009 Chevrolet Avalanche LTZ 2002-2005 Chevrolet Avalanche 1500 Base 2005-2006 Chevrolet Avalanche 1500 LS 2005-2006 Chevrolet Avalanche 1500 LT 2002-2003 Chevrolet Avalanche 1500 North Face 2002-2003 Chevrolet Avalanche 1500 On Road Edition 2003 Chevrolet Avalanche 1500 WBH 2004-2006 Chevrolet Avalanche 1500 Z66 2002-2006 Chevrolet Avalanche 1500 Z71 2010-2015 Chevrolet Camaro SS 2014-2015 Chevrolet Camaro Z/28 1998-2002 Chevrolet Camaro Z28 1998-2002 Chevrolet Camaro Z28 SS 2012-2015 Chevrolet Camaro ZL1 2009-2012 Chevrolet Colorado LT 2013 Chevrolet Corvette 427 2008 Chevrolet Corvette 427 Limited Edition Z06 2003 Chevrolet Corvette 50th Anniversary Edition 2003 Chevrolet Corvette 50th Anniversary Edition Pace Car 1997-2013 Chevrolet Corvette Base 2010-2013 Chevrolet Corvette Grand Sport 1998 Chevrolet Corvette Indianapolis 500 Pace Car 2001-2004,2006-2013 Chevrolet Corvette Z06 2011 Chevrolet Corvette Z06 Carbon 2009-2013 Chevrolet Corvette ZR1 2003-2009 Chevrolet Express 1500 Base 2003-2009 Chevrolet Express 1500 LS 2006-2009 Chevrolet Express 1500 LT 2003-2005 Chevrolet Express 2500 Base 2003-2005 Chevrolet Express 2500 LS 2006-2009 Chevrolet Impala SS 2006-2007 Chevrolet Monte Carlo SS 1999-2005 Chevrolet Silverado 1500 Base 1999-2006 Chevrolet Silverado 1500 LS 1999-2009 Chevrolet Silverado 1500 LT 2007-2009 Chevrolet Silverado 1500 LTZ 2002,2004-2009 Chevrolet Silverado 1500 WT 2004-2005 Chevrolet Silverado 1500 Z71 Off-Road 2007 Chevrolet Silverado 1500 Classic LS 2007 Chevrolet Silverado 1500 Classic LT 2007 Chevrolet Silverado 1500 Classic WT 1999-2000 Chevrolet Silverado 2500 Base 1999-2000 Chevrolet Silverado 2500 LS 1999-2000 Chevrolet Silverado 2500 LT 2011-2013 Chevrolet Silverado 2500 HD LT 2011-2013 Chevrolet Silverado 2500 HD LTZ 2011-2013 Chevrolet Silverado 2500 HD WT 2011-2013 Chevrolet Silverado 3500 HD LT 2011-2013 Chevrolet Silverado 3500 HD LTZ 2011-2013 Chevrolet Silverado 3500 HD WT 2014-2017 Chevrolet SS Base 2003-2006 Chevrolet SSR Base 2000-2001,2006 Chevrolet Suburban 1500 Base 2000-2009 Chevrolet Suburban 1500 LS 2000-2009 Chevrolet Suburban 1500 LT 2007-2009 Chevrolet Suburban 1500 LTZ 2002-2006 Chevrolet Suburban 1500 Z71 2000-2001,2006 Chevrolet Tahoe Base 2000-2009 Chevrolet Tahoe LS 2000-2009 Chevrolet Tahoe LT 2007-2009 Chevrolet Tahoe LTZ 2002-2006 Chevrolet Tahoe Z71 2008 Chevrolet Trailblazer Base 2006-2007 Chevrolet Trailblazer LS 2006-2008 Chevrolet Trailblazer LT 2006-2009 Chevrolet Trailblazer SS 2003-2006 Chevrolet Trailblazer EXT LS 2003-2006 Chevrolet Trailblazer EXT LT 2003-2004 Chevrolet Trailblazer EXT North Face 1998-2002 Pontiac Firebird Formula 1998-2002 Pontiac Firebird Trans Am 2009 Pontiac G8 GXP 2004-2006 Pontiac GTO Base ## Details - **Price:** 3153.83 CAD - **Vendor:** Edelbrock - **Type:** Fuel Injection Control Modules ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 3153.83 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - Primary - User 1 - User 4 - User 3 --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/edelbrock-pro-flo-4-efi-system-seq-port-ls-gen-iii-iv-victor-jr-cath-port-475-max-hp-29lb-hr) > Updated: 2026-06-27