Maximum engine performance requires proper tuning. Until recently, engine tuners were only able to monitor one side of the engine during tuning, or both sides out of the tailpipe in a mixed ...

In the Apr. '07 issue of Circle Track, we tested FAST's new portable air/fuel meter with a race engine on a dyno and found that the tool is useful for dialing in the best air/fuel ratios for power ...

Tuning a carburetor to supply an engine with the correct jetting-air/fuel mixture has always been a job that almost impossible for most hot rod owners and tuners. In the past, most performance engine ...