engine died…several time

I am at a loss my 73 Cuda with a 383 was running great untill I pulled up to a stop light and she died. It started right up and died again but started right up again. Then she ran great for 20 minutes stopped at a few lights and did not stall.
Turned onto my road and died again, this time it was harder to start..but the old girl got me home..like a true Mopar I might add LOL
I put her in the garage and started her again without any problems and jiggled every wire I could and she keep running.
What am I missing??? At a loss here.
Thanks
AL
Author: ram250098