A few easy tests.
Remove dist cap and rotor button so you can see when points open and close.
1) Turn engine until the point are open.
2) turn key on, you shoulg read 8v - 12vdc on the "+" coil screw terminal and slightly less on the "-" terminal. If not your not getting any voltage to the coil.
Now turn engine until points are closed. You shouldn't read any volts (no voltage drop across a short).If you do the points contacts aren't conducting(file or replace) or the wire from the coil to the distributor is open (cut or bad connection at the terminals).
You should get spark out of the large high voltage coil wire by simply opening and closing the points with a non-conductive lever (to push the pints open and allow them to close again) with the key on.
