Help 7.3 missing, no codes, did buzz and contribution tests

[907DAVE]

Do you have a good way to check fuel pressure?

I would be curious to see what the pressure actually is in the head.

You can pull the 1/8" plug from the rear of the driver side head, and screw in a gauge to monitor this.

Its possible that the check valve/ screen/ vibra-lok fitting at the end of the fuel line that feeds the head is restricted.