Day two of the 64 Valiant

After a little rest after a bad road trip to pick up my 64 Valiant my thoughts are on what caused the car to breakdown and have to be towed home.
1) Vapor Lock, exactly what are the symptoms?
2) Weak Coil, car has and aftermarket electronic ignition with a Crane Fireball LX91 Coil. There is spark but should this coil produce a hot spark that about knock me off my feet or just like a normal coil?
Wiring, like connections or fusible link(s)?

Symptoms, car seemed to have an issue after fueling up at least once on the trip. 1st time was after a lunch stop. Car sat for an hour after a 150 mile drive, 2nd time, was after a short stop, 3rd time and the final one was right after a 200 mile drive and right after fueling up. The first two times the car just cranked like there was no spark, just cranked. Fiddled around with the car and both times it started. Last time the car started right up and just shut off about a block from the gas station. Could not get it to restart. Car had power and did turn over but would not start. I did get the car to fire up for just a moment right before the car was loaded on a tow truck but the car only ran for like 10 seconds and died again, then cranked only again. One thing that seemed funny was when the car did start it was kind of like the car got flooded but did not blow a bunch of smoke and the car did not smell from too much gas. I'm at a loss right now. Leaving the car alone for a couple of days, then will begin to troubleshoot. Anything I should be zeroing in on or any ideas of something I might be missing? I know (air) (sperk) (fuel) is the rule. Just trying to figure out which is the culprit. Thanks in advance for any help.

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