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, ...

“Runs good!” You’ve seen that a lot of times looking at Craigslist ads for cars and motorcycles, especially older ones. But what does that even mean? Why wouldn’t it “run good,” anyways Shouldn’t ...

Ignition timing is like seasoning: some is good, but too much ruins the results. Bumping up the ignition timing on pushrod 5.0s is a time-honored trick to wake up the under-hood lump. The EFI system ...

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 ...

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

This GM HEI has the typical gummed-up mechanical-advance mechanism. Note the corrosion on the advance-weight pivot pins (arrows) caused by voltage arc-over and lack of lubrication. Brad Urban at The ...

Q: I have a 2008 Hyundai Sonata which is equipped with a timing chain. The vehicle is approaching 100,000 miles. I was wondering, since it is a timing chain instead of a rubber timing belt, does it ...