Pro-Flo 4 has been substantially upgraded over the previous Pro-Flo 3 with a new, faster processor, a completely new wiring harness, and is still offered with the wireless tablet to allow access to the engine parameters for tuning.

It is supplied with pressurized fuel by the fuel pump in your car, and it is capable of opening and closing many times per second. When the injector is energized, an electromagnet moves a plunger that opens the valve, allowing the pressurized fuel to squirt out through a tiny nozzle.

Electronic fuel injection replaces the need for a carburetor that mixes air and fuel. EFI does exactly what it sounds like. It injects fuel directly into an engine's manifold or cylinder using electronic controls.

The Best Aftermarket EFI Systems

• MSD 2900 Atomic EFI Master Kit: Muscle car or hot rod owners should look to this kit to eliminate idling and cold-start problems.
• Edelbrock Pro-Flo XT Electronic Fuel Injection Kit: With all high-quality components, this is one of the most complete kits on the market.

The Edelbrock Pro-Flo 4 EFI Kit #36170 for the Chevy Gen IV LS7 engine is a fully sequential multi-port injection system designed with a fuel injector strategically positioned in each runner of the intake manifold to deliver the best fuel atomization and most even distribution to each cylinder.

Specs

EFI Components

• Sensor Kits.
• Throttle Position Sensors.
• 5 Wire O2 Sensors.
• Manifold Absolute Press. ( MAP)
• Coolant Temp Sensors (CTS)
• Air Temp Sensors (ATS)
• Idle Air Control (IAC)
• Relays.

And we can get the rest of the pump apart. So when the electric motor. Turns it turns this pump.

The main advantages are of EFI are:

• Increased Power output.
• Lower brake specific fuel consumption.
• Higher Torque.
• Lower Emissions or lesser pollutants.
• Improved cold start, warm-up and acceleration.
• Increased volumetric efficiency and therefore increased power and torque.

EFI-equipped engines provide higher power and torque than a carbureted version of the same engine. They optimize air/fuel ratios and ignition timing while compensating for other factors to maintain continuous optimum performance.

Yes, to an extent. The carburetor regulates the air-fuel mixture by means of suction while an EFI system is able to deliver a much faster and accurate response through the use of injectors. EFI systems are able to run more efficiently and effectively which means fewer emissions and better fuel economy.

A major benefit of EFI systems is the greatly improved cold and hot starting performance. This follows from the ability of the system to calculate the optimum air/fuel mixture for starting as well as from the superior atomisation that results from injection of the fuel as compared to fuel delivery from a carburetor.

In a sequential fuel injection system, the fuel injectors function with respect to the cylinders they are connected to. Every injector injects the fuel only when the intake valve of the cylinder opens. It remains idle for the rest of the steps.

The Pro-Flo 4 EFI system requires a high pressure fuel system providing 43-45 or 58-60 psi of fuel pressure with a minimum flow rating of 57 GPH (215 liter/hr). These fuel system requirements can support up to 600 HP.

Under 200 square feet: 2,000 to 3,000 CFM. 200 to 300 square feet: 3,000 to 4,000 CFM (typically a standard bedroom or kitchen) 300 to 450 square feet: 4,000 to 6,000 CFM (usually a master bedroom or living room) Over 450 square feet: 5,000 to 9,000 CFM.

CFM is cubic feet per minute, which indicates the compressor's flow rate - or the amount of air that a compressor can produce at a given pressure level. Typically, compressors that have higher CFM ratings are able to provide more air, which makes them ideal for larger applications.