1999 Jeep Cherokee Egine stop running

I have a Grand Cherokee 4x4 recently my wife was dring home and the upper hose broke she drove it 41/2 milles home as it sat on my drive way someone cut off my catalytic converter. I tried to start it it would not stya running unless I kept my foot on the gas so when a new converter was put on it still would not stay idled, so I changed both o2 sensors, still the same I changed all the spark plugs, when I took off the fuel filter there was dark gas in it when I put on the new one it still would not stay running. Should I drop the tank to change the Strainer in the tank? What do you suggest?