Tempest or Champion
Was wondering from Experience from others Which is highly recommended from you Guys/Gals Tempest or Champion? I changed my plugs about 100 hours ago from Tempest to Champion because thats all i could get locally at the time. Seems like when engine warms up over time that engine seems to vibrate a little. Was going to change back to Tempest next week and see if there is a difference. Has anyone else experience this when changing the plugs? Timing and points Checked good.