Good to know. I’m still on the hunt even though it seems I did find a short term fix. Runs fine with new fuel pump, however I am likely not out of the woods for potential shutdown surprises. There is definitely more to this problem and is beyond my 'pay grade’..anyway, thanks for the added info. Will keep this in mind.
BTW, in your opinion do you think installing an electric fuel pump would help cure the surprise shutdown issue?
No, I believe that it with the IPR or High Pressure Oil Pump, since they run in tandem.