Edelbrock; Pro-Flo 4 EFI System; 1986 & Earlier Chevy Small Block

Pro-Flo 4 EFI Systems from Edelbrock is the latest generation of fully sequential port self-learning electronic fuel injection. Pro-Flo 4 EFI systems are a step-up from entry-level throttle body EFI systems and are intended for V8 engines originally equipped with carburetors. Each system features an all-new ECU with a faster processor and waterproof design, and an advanced tuner that gives control over air-fuel ratios, ignition curve, idle speed, acceleration fuel, coolant fans, and rev limiter. Edlebrock Pro-Flo 4 EFI systems retain the simplicity that Pro-Flo systems are known for but deliver more accurate, and precise performance output, all without laptop tuning.

Features:

• For 1986 & Earlier Small-Block Chevy engines originally equipped with a carburetor
• Traditional 4150-style single plane intake manifold in satin finish
• 4-barrel throttle body with up to 1000 CFM flow
• 29 lbs./hr. fuel injectors support up to 450 hp maximum
• The exclusive Edelbrock E-Tuner 4 app is Free and Available for Android and IOS based smart phone or tablet.
• Fuel pressure port: 1/8 in.-27 NPT
• Intake manifold height: 4.580 in.
• Throttle body height: 2.250 in.
• Throttle body bore diameter: 1.750 in.
• Ready-to-run right out of the box with dyno developed base calibrations
• No tuning experience or laptop tuning required
• Adjusts calibration continually as the vehicle is driven
• Automatically compensates for altitude and weather changes
• Air-fuel ratios, ignition curve, idle speed, acceleration fuel, coolant fans, and rev limiter adjustability
• Works with a return-style fuel system or can be used with a universal EFI fuel sump
• Self-learn is compatible with boost from turbochargers, positive displacement, and centrifugal superchargers