No Gas to the Carb When Engine Warms Up

Check the rubber hoses,too much hose causing a kink.
A customer replaced fuel filter himself and somehow managed to kink line. It wasnt bent much but engine would starve for fuel. And this was an efi.

After it stalls-
Stuff a rag around air hose and give it 5 psi (even that may be much) into fuel filler neck.
See if filter fills.
Or set up a jug on fuel pump inlet and see if problem changes.