What Mychron leads do you use for your LO206

Still trying to learn things with the LO206.
We have a Mychron 4. What leads do you use? Do you only need an RPM lead? Or do you need a temperature lead as well?
Thank you,

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Welcome John. RPM is definitely valuable.

Cylinder head temperature is somewhat useful to ensure the engine is at peak operating temp, but it’s generally is not needed.

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Plumb a water temperature gauge - into your fuel line leading to the carburetor! That way you can see how fuel vaporization and density affects the acceleration down the straights.

I’m with James, I just use RPM