Why Every Gearhead Needs a Spark Plug Indexing Tool
If you're looking to squeeze every last drop of performance out of your engine, you've probably heard someone mention a spark plug indexing tool at the local track or on a deep-dive performance forum. It sounds like one of those hyper-niche things that only professional engine builders care about, but honestly, it's one of the most satisfying "little wins" you can achieve in your own garage. ...