<VV> No spark

[Jim Simpson]

Sounds as if you need a voltmeter or at least a good continuity checker of 
some kind.

Check to see if there is voltage at the points with the points open and the 
ignition on.  If there is, then make sure the points are clean.  If NOT, 
then start tracing back to see where voltage first appears -- at the 
negative end of the coil, the positive end of the coil, etc.  Check all 
those crimped connections -- they do corrode or loosen.

One commonly overlooked component is the black wire the runs from the coil 
to the points.  Over time,  between the flexing caused by the vacuum 
advance operation and the hardening of the insulation, this wire frequently 
breaks internally at the point where it goes through the side of the 
distributor.

Jim Simpson, Group Corvair