Timing Advance Sanity Check

blind bat said

me questioning my understanding of how the mechanical advance works.

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A lot of times changes do not do what people expect. The more you work with the distributor the better you will understand the mechanisms. The governor's upper limit is not the most critical item even though people think it is.
We step through much of it here.
Distributor curve help needed

Summary of all of the contrlling functions here.
lets revisit timing