I'm going to Hatfield McCoy the end of August and I'm curious what spark plug you ride with in your 360 and 300 Prairies. Do I need to go to a diffrent heat plug do to the altitude change?

Thanks,
Mud

 

No, you will be fine with the normal, regular spark plug. There is no real extreme temperature change. Only sea level. But a spark plug will work fine in all weather conditions. As long as the gas hits a spark, there will be fire, in any weather.