It misses and runs rough during startup?

Right now Im going to try to drive until the tank gets empty. I will try to get a pressure gauge but taking it out the last couple days for a sort run its ran good at 50 MPH. So I doubt think fuel pressure is low. I will try to check it with a gauge soon. Once the fuel tank gets empty Im changing the filter first and then just put a few gallons of high into it maybe with a little injector cleaner and see what happens. If that dont work then it will be fuel pump change time especially if I dont have the recommend 55-60 psi. What do you think. And thanks for all the help. I will keep you up to date.

Getting ready to change fuel filter. Plan on connecting hose to outlet of old filter and pickup pump feeding old gas into a glass 1 gallon jugs. Is here a way to energize pump without pulling relay out and jumpering 30 to the other contact which I think is 87. Not sure. I don't want to damage the receptacle shoving something in it. Hoping to empty they 10 gallons of fuel in the tank. Turning key in only energized the pump 2 seconds. Please advise.
Thank you, my friend.

Dear Ken,

First thanks for the help. Got back to my daughters after a week where the truck is stuck until we have a reliable fix. Put code reader on it and had the following:
PO300
Engine misfire detected
Fix assist
Affects one or more cylinders
Fuel metering fault
Fuel press low/ high
Fuel supply contaminated
EVAP system problem
EVAP canister saturated
EGR valve stuck open
PCV system vacuum leak
IC control circuit shorted to ground.
Ign system fault ( a coil )
Tbs-87-65-08
Tbs-03-06-04-030
Tbs-03-06-04-055
So I erased code and started truck was running fine. Ran around the block 6 times with no issues. Get back and decided to check fuel pressure with gauge hooked up to feel rail. Got 55lbs with key in and started and went to 60lbs. Decided to change fuel filter anyway. Unhooked output from old filter put in bottle and turned key in and off 4 time filling glass jar. Fuel looked light amber and crystal clear with no water. Changed filter which was a paint in the ass. Clips did not work that came with new filter and had to use the old ones. Finally got it on and fuel pressure went up to 65lbs. Truck still experience a studded when stopping down quick to raise rpm.

See the photos below with the troubleshooting information. Sent they other day but not sure if received on your end.
Thanks for your advise.

Intermittent rough idle and missing. Code reader shows P0330 engine misfire detected. Fuel metering fault. Fuel contaminated. EVAP canister or EGR valve stuck open. I check fuel pressure 60# and fuel is clear.
Please help
Thanks Bob

This problem was previously sent and Ken replied. The fuel filter was changed but still has the idle issue. Also performed test with gauge at the fuel rail and a code reader. Code was P0300. See readings and info on the attachments.
Checked fuel output from old filter prior to changing it and it was clear with no water.
Purchased Lucas Complete Engine Conditioner and the stabilizer for the remaining fuel to see if that helps.
Truck runs fine and accelerates some time but when started up again it starts to buck and run rough and when I step the accelerator down quick it misses initially but then the RPM comes up okay.
Two months previously had a service engine check light and changed the purge solenoid valve which fixed that error code. Not sure of something in that system many have a problem. This truck is driving me crazy

Thanks for the help. Do you think I should start changing our checking some of the other possible things that are on the single PO300 code list in its suggested order like EGR valve, fuel canister, contaminated fuel before removing the computer and sending it out?

I am going to try to find that regulator and let you know. So far changed purge solenoid valve, new fuel filter, checked for clean gas, and got a steady 65 lbs at fuel rail. Ill try again to find that regular and check plugs next.
Thanks for the help Ken once again. Battling cancer with 200k medical bills cant afford to have some one else doing it.

New update.
Reset code. Put Lucas engine conditioner in fuel tank. Headed home with no service engine light until 6 miles out. Stayed on without flashing until I got home. Truck ran normally. Once home put code reader on it and got.

New update.
Reset code. Put Lucas engine conditioner in fuel tank. Headed home with no service engine light until 6 miles out. Stayed on without flashing until I got home. Truck ran normally. Once home put code reader on it and got PO420 catalyst system low efficiency. Also, a small red icon that says EVA.

Checked the cat after driving awhile temperature at input was 303 degrees and the output was 500 degrees. Ran truck about 5 miles with no light up and 5 miles back. Then went a 33-miletrip and back to the store and there was no service engine light yet. Afraid to go too far because I can't afford a tow truck trip. This is after putting the Lucas complete engine conditioner in two weeks ago and driving it back 14 miles it which time got the light halfway back. Since then, reset code and no light yet with these short runs. Any suggestions? Thanks
Bob

Okay, stay tuned.
Thanks again,
Bob