View post: REI Has a 'Comfortable' Rain Jacket on Sale for Almost 50% Off This spark plug tester features an innovative dual-socket design, allowing you to test two spark plugs simultaneously. By ...

For most of us at least, when it comes to ignition systems, as long as we are getting spark in all eight cylinders and the engine isn't popping and missing, we're usually pretty happy. Maybe we'll ...

Around 1975, General Motors made a significant advancement in stock passenger ignition technology: the High Energy Ignition (HEI). One of its major features was installation simplicity. The coil was ...