[bkozlow]

Replace the electric pump. Add the mechanical, problem I see is that the engine may have not been setup for a mechanical pump. Pull off the pump cover and see if you have the pump cam on the crank. If not then a bigger job of pulling the front of the engine off and adding one. A lot of engines are built without the fuel pump cam these days with everyone going to all electric pumps. Electric-mechanical gives you an extra layer of protection on pump failure and provides a constant fuel supply to the mechanical in high RPM situations.

Bill K