The turning point comes in the form of EFI systems that can literally be bolted on like a carburetor—only unlike a carburetor, these systems tune themselves. No jets, no adjustments, no laptops—just ...

Carburetors and electronic fuel injection (EFI) both inspire strong loyalty among enthusiasts, each offering distinct advantages in performance, maintenance, and feel. Carb supporters value mechanical ...

Car culture has long been split between those who trust a screwdriver and those who trust a laptop. On one side sit classic ...

Some of us have been there. Others never have. For those who have seen the inside, we realize it's a scary and confusing place. We slowly found our way around the "safer areas," then ventured further ...

Electronic fuel-delivery and ignition controls have given us a new golden age of engine efficiency and performance. Most of us would never go back to the dark ages—say, before 1990—when you could ...

Fortunately, the aftermarket soon stepped in by developing stand-alone engine management systems that took over fuel and spark duties from stock PCMs. The aptly named Fuel Air Spark Technology (FAST) ...

The first thing you should understand is that direct-port, constant-flow fuel-injection—Hilborns, En-derles, Crowers, whatever—were never designed, nor intended, to be run on the street. All of these ...

Most new petrol cars you see today are equipped with fuel injection systems or injector motors. These have almost wholly supplanted older carburetor motors. They are more reliable, effective, and ...

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 ...