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 ...

Do you expect to unwrap new car parts, bolt 'em on in an afternoon, and go terrorize the streets that evening? If that's you, forget about converting your carbureted car to EFI. On the other hand, if ...

The fuel injector is the least understood component of the EFI system, but it is a critical part for a successful calibration. The job of fueling the cylinders comes with many design and engineering ...

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) ...