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Pull a wire off a spark plug,(or out of the center of the distributor) put a paper clip or a bent wire in the boot so it touches the metal end of the plug wire, hold it ~1/8" from a good ground, turn on the key and try to start. You should have a fat, bluish spark between the paper clip and the ground. If it's anything but a fat, bluish spark, you have a problem in the primary ignition circuit(That's the circuit from the battery, through the key switch, the solenoid maybe, depending on your wiring, through the coil, the points and to ground.)It could be as simple as coroded or worn points, loose wire or bad connection, broken wire, bad key switch, etc. Get a volt meter and check for voltage by rotating the engine until the points close and the making sure that you have voltage at each connection from the battery to the points. With the key on and the points closed, hold one voltmeter lead to a good ground and touch the other to the battery side of the key switch, the coil side of the key switch, the battery side of the coil, the distributor side of the coil, the points and any connections between the battery and the points. If you don't have battery voltage up to the coil, find out why. You should have less than battery voltage at the distributor side of the coil, but not zero volts.If you have a ballast resistor in this circuit, you should see about 5 to 5.5 volts down stream of the resistor and less volts downstream of the coil but not zero. hope this helps you.
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