Tytronic electronic ignition

[Axehandler]

I'm in the process of doing the install and I have had similar problems as the OP with timing. I was able to get it to time perfectly without modifying the plate but I did have to advance it. My plugs were sooty and I was having trouble getting the points readjusted before I opted for the electronic trigger. I am concerned the real reason is not a manufacturing issue but I think my timing chain is a tooth advanced. What will a timing light tell me?https://photos.app.goo.gl/C2JAdjpL7LkLS25v6