Elec woes, crank, no start after running then parked.

Hi all, while out for a test drive the other day, I went to store. 10 minutes later crank, but no start. Popped hood wiggled this n that(no tools with me). Disconnected and reconnected distributor connector and it fired up. Made it 5 minutes down the road and died again. This time, no start, but cranked and drained battery. Waddled home, grabbed Lori's car and boosted the cuda.
Sidenote carb(Eddy 1405) is doing what I think is a "lean surge". I changed start orange springs to pink(1 stage richer) and rod change to 1446 with surge still occurring and possibly contributing to the stalling. But I digress lol, back to electrical bs....
For ECU I am running the Standard Motor Products LX101, coil is SMP as well. Ballast resistor, not sure.
Could this INTERMITTENT crank, no start issue be due to "mismatched" parts?
I have Mopar orange ecu 4120505 if anyone knows #'s of components to match with it?
This is in our 67 cuda rebuilt 340.
Elec ignition, 70+ charging system.
Thanks
Steve

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Stealthy looking motor. :thumbsup: