Progress? I think yes...

Verdicts after driving to work this morning:

1. No exhaust leaks when I started it, and it was colder this morning.
2. Thanks to the fixed exhaust leaks, the wideband was showing sane numbers
3. Valve tick is gone
4. I was crossing an AFR border on my target table on the way in to work today. I've raised my 16.0:1 AFR cruise block by one row to try and get a leaner cruise at highway speeds. The difference appears to be large. Using the calculated instang MPH in the log viewer, at 65mph, an AFR of 16.0:1 = ~24mpg. 15:1 = 17mpg. Its huge. Just hope running it at 16:1 doesn't melt anything.

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