Any one notice if you tap the brakes so that the truck nose dives when coming up to a stop sign, that the fuel pressure will rise as much as 1 psi, it only does it if you slosh the fuel, pumping the brakes with the engine running, nets no psi change (eliminating any psi changes due to VP loads)
I'm thinking its time to move my pump back near the tank

 

what pump are you runnin

 

stock fuel system, with new cummins stock replacement pump