I've been having this problem on and off, sometimes the car runs fine, and sometimes I get a "miss" when cruising or at very low rpm. It seems to do it worse when the car is warmed up. Its not a really bad miss, but with my loud azz single shot exhaust, I can really hear it. It seems to run fine when I get on it, or when accelerating at a decent rate. But cruising at say 2000 rpm, it will miss. This may be my imagination, but I could have sworn it would miss when I hit a bump too. Maybe coincidence. Thanks for any help. I'm thinking ignition module. Coil pack, plugs, wires, and motor are new. The ignition module is 1987 original I think......