There is something for sure causing the fuel to be restricted somewere in the lines or pickup. When the truck is running it has suction on the lines and then pulls whatever it is into the line and restricts it. Then when it dies the whatever will move out of the way. Why it takes so long for it to do it again is well Im not sure. I'v seen a rubber hose come apart internaly and have a small flap that will come down and block the line, but then it would do it all the time so I don't know whats going on. It's weird. The only way to check the pickup is to drop the tank and pull the assembly out of the top of the tank.
Lil Red Express, 02 3500 QC, 544HP 1201TQ Uncorrected, Fully built Goerend Trans, Ute Bullbar, stacked, Phatshaft 62, Lightning pump, FASS, Adrenaline/Pulse 40HP Sticks...