fried okra
Senior Member
Good input group, am gonna try some Champion W16Y plugs, slightly hotter than the 3X's I gather. The Champion W89D or 589/W89D appears to be a good option also.
Here is a link to some general info:
https://www.fordgarage.com/pages/brumfieldsparkplugnotes.htm
Here is a link to some general info:
https://www.fordgarage.com/pages/brumfieldsparkplugnotes.htm