Edelbrock 35770 Pro-Flo 4 EFI Kit, Pre 1986 Small Block Chevy

When choosing to upgrade your engine to modern fuel injection, look no further than Edelbrock's Pro-Flo 4 EFI systems. Edelbrock has been delivering the best combination of dyno proven electronic fuel injection performance for over 40 years. Pro-Flo 4 is not just a replacement for your carburetor, it's a complete engineered system that provides the ultimate in performance, drivability and quality. These easy to use, self-learning EFI systems feature an all new ECU pre-loaded with 80 dyno-tuned calibrations that support popular engine configurations up to 800 hp. Combined with the enhanced E-Tuner 4 App's easy to use setup wizard; you get plug and play performance without the need of a laptop or costly dyno tuning sessions. Pro-Flo 4 EFI systems are the most complete systems available on the market, giving you what you need to upgrade to powerful and efficient fuel injection for your vehicle. Pro-Flo 4 EFI systems are the best value for your dollar! 

• Fits pre 1986 Small Block Chevy with standard heads
• Supports up to 625 HP
• Easy to use self-learning system that will continually improve engine performance as the vehicle is driven and compensates for altitude and weather changes 
• Fully sequential port fuel injection system that delivers a smoother idle, great throttle response, improved peak power and the potential for improved fuel economy 
• Ready to run right-out-of-the-box with pre-loaded calibrations - No laptop or tuning experience required
• Internal fuel pump driver, no extra relay or wiring required
• Easily adjust your ignition curve specifically for your engine setup, eliminating the hassle, complexity and limitations of the standard distributor advance mechanism
• All kits include a plug and play single connection distributor designed to work specifically with Pro-Flo 4. No complicated distributor conversions, rotor phasing, CDI box or added expense of purchasing a distributor.

Edelbrock Manifold Reference Dimensions Chart (JPEG)

Installation Instructions (PDF)