One of the most important measurements we make while tuning an engine is finding out what the actual balance of air and fuel was inside the engine. It doesn’t matter if we have a carburetor, port ...

When vintage Mustang enthusiasts think fuel injection conversions, their minds often visualize the popular late-model 5.0L engine swap with its long runner, two-piece manifold, port fuel injection ...

As ever, I am fighting a marginally winning battle against my 1991 Mazda MX-5, and this is the story of how I came to install a wideband oxygen sensor in my Japanese thoroughbred. It came about as ...