missing while accelerating when warm

I have an 86.5 7mge. When it warms up it imtermittently misses pretty bad while accelerating. Its very frustrating cause is intermittent. Sometimes no problem and sometimes pretty bad. It also idles very poorly once warm. New wires, plugs. I checked the TPS and it seems to work fine. I wan thinking it might be the ignition coil. Does anyone have any ideas?

Check for a sticking idle air control (IAC) valve or exhaust gas recirculation (EGR) valve. Either of these can cause poor idle when warm. Also, check for air plenum and vacuum leaks. Good luck!