@Setanta,
Setanta wrote:
Hmmm . . . have you considered switching to the new Champion Iridium plugs on your next tune-up? I hear they never misfire, and don't foul or build up carbon even in heavy use . . .
Here in New Mexico, zoning restrictions limit the sale of Iridium plugs to the Safeway market in Los Alamos and the QuikStepEasySwipe store in Espanola.