Good idea on the timed runs. Sounds like spreadsheets and graphs. Kinda my wheelhouse!
When I was 18 I took the truck to a mechanic to try get it tuned properly. I didn't have the skills, and the internet was just coming into existence. The mechanic flat out told me to go find an old farmer.
So I asked my grandfather, which I should have done in the first place. He told me it's tuned properly when I could start out in third gear. Pretty simplistic.
I'll post results when it's done, but will be about a year's time.
