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Atomic 4 Engine Quits
mmmmmm Sounds like an intermittant electrical connection to the electronic fuel pump.
Such installations also usually have a "low oil pressure safety switch" - if the oil pressure drops below a certain set point, the relay opens and cuts off the electric supply voltage to the fuel pump.
Therefore you now have TWO circuits to analyse.
Regarding the Safety switch, you can temporarily bypass the switch by placing a jumper across the switch that will keep the fuel pump energized.
Look for untinned, non-marine grade wiring in these circuits and replace it with tinned marine grade wiring. Typical ''automotive'' grade wiring will quickly corrode especiallly at the connection ''joints'' .... and may be your ''problem''.