This is an interesting video on setting timing, starting with total mechanical timing:
https://youtu.be/wifTHbb06_I
I'm going to start again from scratch. I'm at a car show and on the drive here the temps were close to 210°. But with the current setup, it did run nicely, especially cold.
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Adam
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1964 LeGTO
469, M21, 3.42
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Sold:
1968 Pontiac LeMans Convertible
See it go
HERE