Wiring Gremlin

I have a wiring gremlin somewhere. I will be driving the car and the car will act like its not getting any fire to the plugs, the tach needle begins to jump around and then the car dies. I can wait about 5-10 minutes and it will fire right up. It has also done this while idling in the garage. Last time it happened in the garage I was watching the fuel pressure and it never moved. Stayed right at 7 psi. Somewhere the gremlin is hiding. About a 6 weeks ago I replaced coil, ECU, internals in the distributor, set the gap at .008. I`m puzzled.