Posting a link to a few of the related pictures that evaporated due to the Photobucket thing.

https://www.plymouthcarclub.com/2018/05 ... -cap-gaps/

Any other requests for additional specific pictures will be found at that same link.

Don

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1965 Dart 110k, 225, Carter BBD Super Six, 2 1/4 single exh., sbp manual scarebird front disc, 7 1/4 rear 2.94 sure grip, 14 x 4.5 OEM wheels, 833 OD with hyd. throwout bearing, HEI, electric fan, ram air/heated air, Accusump. http://plymouthcarclub.com/

My old ignition scope is currently buried, I have a sm
Snap on "counselor" I picked up via CL probably 10 years ago.
(I liked the old sun 1015 and 1215 I used at past jobs better but this one does the job)
I wonder if it could be picked up on a scope screen if this we're an issue?
I've forgotten a thing or 2 about scope patterns over the years

The Sun 1215 that I used did a great job at displaying on the scope the entire cycle showing voltage in the coil line.
I'll dig out the picture and add it to the link that shows some past pictures. It even shows the impact of opening up spark plug gaps for example.

Don

_________________
1965 Dart 110k, 225, Carter BBD Super Six, 2 1/4 single exh., sbp manual scarebird front disc, 7 1/4 rear 2.94 sure grip, 14 x 4.5 OEM wheels, 833 OD with hyd. throwout bearing, HEI, electric fan, ram air/heated air, Accusump. http://plymouthcarclub.com/