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, ...

Ignition timing is easily the single most important tuning adjustment on an internal combustion engine and yet the concept of ignition curves continues to be elusive for many enthusiasts. Yet all it ...

There is probably not a single reader of this magazine who does not want his or her Pontiac's engine to perform to its best ability regardless of its number of cylinders or cubic inches. To reach that ...