1993 Toyota Tercel

I have a 1993 Toyota Tercel 1.5 liter 4-spd manual transmission with approx. 160000 miles. I went through replaced the thermostat, plugs, cap, wires, rotor, coil pack, coil pick up, throttle position sensor, and catilytic converter. My problem was that each time it heated up it wanted to shut off, now when I start it up it and give it gas it bogs down and lopes. I've looked all over and can't find any vacum or gas leaks. I was told it could be a clogged fuel filter or a bad O2 sensor. I am about to push it into a field and blow it up. Is there anything else you would try? I hope you have something to help me with this so I haven't wasted my time and money. Thank you