New weird issue

jhdeval said
No I am running a Chrysler Blue Box or economy electronic ignition. Would that dieing explain the intermitent running?

it could be getting hot and cutting out... same with the ballast resistor...

if you have new of either they are easy to swap... depending on the ballast it will have a different ohm rating but you can test it...

as for the box i dont know what to test for on those...