Fuel Pressure for 7.4L vs 5.7L

[Supercharged111]

Just a follow-up. Finally got around to changing the FPR on the 7.4 and now I get 45psi Key on, 40 psi idle, and 50 when quickly burping the throttle. Not the numbers I was hoping for so I may do a fuel pump as preventative maintenance.

Replaced the reference line as the old one was cracking on the OD.

Deadhead the pump to verify it's the culprit. I pinched my return line off and saw now change in pressure, that's what it took to motivate me into dropping the (full) tank. Ended up getting it right.