We're going to (hopefully safely) assume that Mustang enthusiasts who follow our tech content on a regular basis are familiar with the term air/fuel ratio by now, as it's something we often discuss ...

According to tuners that we’ve spoken to, even engines with fairly big cams will idle at 13.0:1 air/fuel ratio and might be able to handle as lean as 14:1 air/fuel ratio at part-throttle. Much of this ...

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 ...

Carb tuning has always been nothing short of black art, truly mastered by few. Calibrating the carb to provide an optimal air/fuel ratio over the engine's operating range enhances the power output.

A misfire means that a cylinder in your engine isn’t producing the power it should because the air-fuel mixture in it didn’t properly ignite and burn. It could be an intermittent problem — meaning it ...