Briggs has updated a rule regarding the head gasket for the 206 engine:

We continue to improve our KA100 rule set seeing as this is a new program for the West Coast. We have made two changes to better align ourselves with other organizations running the KA100. Please make note of changes under the Spark Plug, Head Gasket and Starter rules. https://kpxracing.files.wordpress.com/2018/04/kpx-iame-ka100-2018-v2.pdf

Full rules including updates can be found at: https://kpxracing.com/kartingchampionship/series-information/

KPX Mission Statement:

The KPX Karting Championship has been established to promote affordable and competitive championship kart racing at the grassroots level. It is our belief that the sport of kart racing should be both accessible and enjoyable and a place where core family values are both fully embraced and exercised. It is important that our competitors not only feel as though they are able to race in a fair and transparent environment, but that they also have the opportunity to demonstrate their abilities on track under rules that guarantee equality and parity of equipment. We will strive to ensure that these fundamental values remain ever-present in our Championship series and look forward to welcoming drivers into our racing family.