Excellent video. Especially the visual setup with the system isolated and components cut away, but all around as well. I was just tuning up my cousin's old work truck and found I barely remembered anything about distributors. Until you mentioned it, I even forgot that's how we used to adjust the timing.
Thanks for this information information, I've had a misfire on my mk1 citi, changed my HT leads, spark plugs and distribututor but didn't realize that the "new" distributor was actually a second hand one so it was very dirty