i was just wondering how much would be gained by changing to a 3 stage colder plug i have autolite 104's gapped at 54
i had tr6's gapped at the same, whats the best/worst thing that can happen by going with103's add if i can what gapping
mods listed in sig
i had tr6's gapped at the same, whats the best/worst thing that can happen by going with103's add if i can what gapping
mods listed in sig