I'm coming up on annual and was going to replace the Champions with the Tempest plugs. If I'm reading it right, there are two different plug choices for my O-360A4M in my Archer.
Anyone know which one is the preferred plug? I think one was called fine wire and the other massive. I have no clue.....
Anyone know which one is the preferred plug? I think one was called fine wire and the other massive. I have no clue.....