https://www.gnarpowpow.com/tags/spark-plugs/ Tue 05 May 2026 23:10:36 +0200 https://www.gnarpowpow.com/videos/19293/steve-tech-properly-reading-spark-plugs/
Steve Morris of Steve Morris Engines gives you technical details about properly reading your spark plugs to maximize engine performance. ]]> Fri 08 May 2020 10:48:01 +0200 https://www.gnarpowpow.com/videos/19293/steve-tech-properly-reading-spark-plugs/