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 ...

We spend a lot of time preaching about building horsepower through improved combinations of cylinder heads, camshafts, intakes, and so on, and if the mail is any indication, so do you. Bigger, better ...

Your Mustang's distributor performs one heck of a job. It has to deliver a timed spark to each spark plug at precisely the right moment in sync with piston travel and crankshaft, camshaft, and valve ...

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, ...

Some very valuable tuning tools are greatly misunderstood. Take the lowly vacuum advance canister. Many enthusiasts dismiss this device as superfluous—or worse—only for emission-controlled engines.

Every engine has a means of coordinating the timing between the valve train and the rest of the engine. Some engines use a timing chain and some a timing belt. A timing belt has the relatively ...