Jetting a carburetor is one of the few "black arts" in the automotive world that is still a mystery to most racers and tuners. Most tuners still look at the spark plug, the exhaust port, and the first ...

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 ...

Improving fuel economy or gaining horsepower means making the engine more efficient. Fuel economy or maximum power is only obtainable when the correct air/fuel mixture or ratio (a richer mixture for ...