Older vehicles with distributor-based ignition systems need their timing checked on a regular basis, otherwise you can have a host of problems. Starting becomes difficult, idling will be rough, ...

It's all in the timing, they say. Well, other adjustments also play a big role in how your motor runs, but firing the spark plugs at the correct time certainly helps performance. Most 'wheelers simply ...

The Advance CurveAll engines require an ignition curve based both on the requirements of engine rpm and cylinder filling (volumetric efficiency). This means that at 3,000 rpm with the throttle open ...