Most modern vehicles have multi-port fuel injection (MFI) with a separate fuel injector for each cylinder. This system mixes the fuel and air together right in the intake port for eachengine cylinder ...

If you already have a Chevy TPI unit from either a Corvette or a Camaro, DFI will sell you the pieces you need to make the system operational in virtually any street machine or rod. The pieces include ...

The carbureted car and truck era phased out by the early '90s. Carbs are still in use today on a few motorcycles, lawn mowers, and other power equipment, but electronic fuel injection (EFI) is ...

How does direct fuel injection work? Instead of having injectors in a throttle body, or in the intake manifold, a direct injection system makes use of an injector that fires into the combustion ...

This month we wanted to test electronic fuel injection (EFI) again. But this time we wanted to use a throttle body injection (TBI) system like the ones that came stock on GM trucks for many years, ...

Edelbrock was the first aftermarket supplier to offer electronic fuel injection back in 1979. Their newest system, the Pro-Flo 4 port-injection system, is an evolutionary leap forward and fits a wide ...