[GP99GT]

k i know this isnt the "correct" forum to be asking mustang questions on, but i posted on corral.net and got no response. i seem to have an intermittent misfire. drove it around today after changing my last spark plug, ran fine, raced an srt-4, yadda yadda. parked it at my cousins for maybe 45 mins, got in it to go home, pull out...first gear fine....2nd gear the car starts missing, sputtering, tach keeps dropping down every time it does it, and it did it the whole way home. it was also doing that yesterday, i thought maybe it was that last plug i didnt get to change, but thats obviously not the case. it was doing this before i did the plugs/wires too so its not related to that. has new plugs/wires/cap/rotor, fuel filter, recently ran some injector cleaner through it, cleaned the TB out, so the basics are done. any ideas? its an 87 5.0 with speed density. Ian suggested the MAP sensor, im also thinking coil or ignition module on the distributor.