91 300 automatic, regular cab,short bed.
Truck runs fine on rear fuel tank. If I'm going 25-30 plus my and I switch to front tank it runs fine. If I try to let it idle on the front tank or take off from a stop it starves of fuel. It seems to me if something was clogged up it would react the exact opposite. Any advice would be greatly appreciated.

 

Check the fuel pressure at idle on the front tank. Harbor Freight has a not too bad set I use. Not too big of a job if your front tanks pump is bad to just slide the bed back enough to take the pump out from the top of the tank.

Adrianspeeder

 

Sounds like a bad front pump