ORIGINAL: a1pcfixer
Jody recently revealed one of his jewels of knowledge about plug gaps.
Set your NGK/CM-6 spark plug gap at .024. Tends to help in some cases.
Stock setting by some is .020
I had a very minor high speed miss in one of my DLE30s. Changed the gap to .025 from .020 and miss went away. I had never messed with the gap on a CM-6 much. I should have known this would work as for just about every engine I have ever worked on, within reason, if there is enough voltage available, wider gaps run better.