Want run over 20mph

Ok this thing will idle fine and run fine till you get up to about 15 are 20mph and it act like it is out of fuel. I changed the fuel filters, took the line off the tank and blowed air to blow the screen off and still does the same. Anyone no of anything? Also I'm just running the back tank took the front off. it is a 302 5.0 also it don't go dead just sputters.

Run scans for On, running & continuous memory errors.

What year is your truck ?

Do you have a check engine light on ?

When you removed the front tank did you also remove the tank select valve or by pass it ?

Have or can you perform a fuel pressure test both at idle and driving ?

Thanks guys but it was the fuel pump!