Fuel level gauge doesn’t work and truck starts running out of fuel at around 13 gal used. 130miles or so give or take so maybe problems inside of tank at fuel pickup????
Before I replaced my injectors I was getting less than 9mpg.13 gal I think is about right for the front tank
So you probably shouldn't plan on 130 miles.
And definitely make sure you have at least 1/2 tank while trouble-shooting.
Better yet...run a hose from your lifter pump straight into a jug of fuel and see how she runs. Then you might know if you're sucking air before the lifter pump or not.