Need tuning help on 340 (Part II)

Post a couple of pics with the warmer plugs. As a GENERAL rule, the heat line on the ground wire should be half way around the bend.

If you are using a very long nosed plug, it may not get to the middle before it runs into detonation. If you are using short nosed plugs, the heat line may have to go past the middle (closer to the shell) for correct timing.