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I'm assuming you have the stock Marelli distributor, correct?
1. Check voltage at the + terminal on the coil. The green wire on the + coil terminal goes to the fuse box, so should have 12 volts with the key "on."
2. Check the black wire going from the (-) term on the coil to the underside of the distributor. It connects to a spade terminal underneath the distributor base. Sometimes that connection can get corroded and loose.
3. Check for carbon tracking in the distributor cap.
4. I assume you did put the rotor back in, RIGHT!!!??? .. . . . . not that I'VE ever forgotten it and wondered why the car wouldn't start.
5. Check to be sure the springs on on the advance weights.
6. Spark plug wires are infamous for causing intermittent/strange problems. I just replaced my old wires due to an annoying miss that gradually got worse and worse. Smooth as silk now. The old ones looked great, but had hardened and I'm sure they were leaking like crazy. If you have another coil to distributor high tension wire, try replacing it and see if that makes any difference.
7. Do you have an induction-type timing light? If not, I'd recommend that you get one. It's great for seeing exactly how the plugs are firiing. In my recent case, I could see that the spark on the #4 cylinder was sparking erratically and a lot more than it should have.
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John Stewart
74 Spider
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