I know this sounds ...well basic....u did change the cylinder section on the muti meter to 8 cyclinder?
Why did you convert theign system to 12v, not ballast?
I would have left it orginal.
If the whole vechice was still 6 Volt yep would upgrade that to 12V, but still retain a ballast ign......
Reason..its a bitch to dial the correct condesor in to stop pionts or make pionts last a long time as they should....simple things like changing the wire or lentgh the between coil and dizzy messes this up..
OH a thought...one can do a 100 set of pionts and not wipe the contacts before install..then get that one which has that bit heavier oil anti corossion stuff on..it burns and caused issues....always wipe the pionts on the cardboard backing of the box they come in... long shot.
I'm reading about 42 degrees dwell angle and the gap seems OK on the points. Spec is start with 0.016" point gap and set dwell no more than 30 degrees.
What is the dwell at 16/1000 ?
15/16 thou is what u would set pionts at on most pionts dizzies if you dont have a manual around and they will run.
And 8 cylinder does have 45 degs fires, 42 degs seams a very long satruation time thats just over 90%
These things idle at only 400 RPM and if I rev the engine dwell reading will drop a little but not much
Most dizzies will, it indicates some wear in the shaft /bushes...u many notice the total timing if graphed, goes up to spec then and 700 1000 rpms abovethat pull another few degrees.