Mechanical fuel pump test - 7.3 idi

I finally got a mechanical pressure gauge on my '93 7.3 IDI.
TLDR: I get 4 PSI at idle, 3 at WOT with a stock lift pump and stock IP.

[@Mr69barracuda]

It is easiest to go through the wheel well to remove the fuel pump. Take the tire off then the internal well mud flap. "Simple!"

[@matthewshelley6258]

in order to get tha gauge to work is it just that one copper line or is there another line

[@jonhsmith2706]

hey was it your fuel pump

[@MacRobbSimpson]

In my mind, this is normal. Worked just fine and consistent pressure. 4 psi doesn't bother me at all, not for an IDI.