Spark plug indexing gives each spark a clearer path to ignite the air-fuel mixture, which can help tuners squeeze out a few ...

Spark plug indexing sometimes is necessary to avoid side-electrode contact with high-dome pistons. Moroso offers different thickness spark plug washer kits to do this. Some theorists claim positioning ...

Replacing spark plugs is an essential and moderately simple task. However, to make the process even smoother, you'll want the ...

We may receive a commission on purchases made from links. When it comes to engine care 101, a spark plug replacement — also referred to as a tune-up — is an essential task. Spark plugs, as the name ...