sorry guys its not a z but its an sbc with an H.E.I distributor?
couple of days ago i drove the car from st pete to orlando about 2 hours.
the car ran great. before the voyage i put on a new cap,rotor,wires the plugs were pretty new.
i drove the car to work today and it ran just fine.
aftert work i let the car idle for about 10 minutes while it warmed up and while i was on the phone.
when i drive thru the parking lot it was fine.
when i pulled out on to the street it started to missfire at mid rpm.an hour after work i test drove it again and it was still at it. so i went to the parts store and got new plugs and a fuel additive(just incase, car sat for a few months)
i pulled the plugs and they were a little lean. but not too bad.i replaced them anyways.
i took the car for a drive and it was great! it pulled all the way thru the rpms with no problems. i pulled a u turn to head back home and it starts to act up again.i checked to see if my plug wires came loose but they werent.
the distributor is not looseand it has me stumped.
the only thing that i can GUESS is that maybe the ignition module is starting to heat up and act up.
is there anything else that i should look for?
anybody else experience something like this with an H.E.I?