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 ...

So just how does the FAST meter work? It measures the air/fuel ratio, vital information not just for performance or economy tuning, but for anti-pollution reasons too. An optimum air/fuel ratio ...

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 ...