if the points are opening and closing and you are verifying this with your probe.
as the dist rotates the 12v will drop in and out as the points open and close.
you have replaced the coil
then it looks like the CD unit is bad.
the large capacitor inside the CD is probably bad.
if you have a MM and want to open the CD and test the cap here is how.
set the meter ohms and on a low scale.
connect one lead to A on the input to the CD.
connect the other lead to "4" (CS/thya) on the right side of the diagram.
the meter should either increase or decrease,
swap the leads
the meter may increase or decrease.
it should not be a sudden change.
if the meter shows either very hi resistance or a short (it may not move), the Cap is bad.
