Sounds like the points are not making connection.
Turn the engine until the points are closed, turn the ignition on, then take the voltage reading.
If the points made connection, the voltage to ground on the points side of the coil should be zero. If the points are closed and voltage is still on the distributor side of the coil, the points are needing to be cleaned or replaced, or there is a bad connection between the coil and the points.
Once the connection is made, and the voltage on the distributor side is zero, the ignition side should read around 6 volts after the resistor, battery voltage ahead of the resistor.
Take your readings quickly to avoid overheating the coil.
While dealing with the points, check the distributor shaft for side play. If it is worn the points will not stay set and will be short lived. Todays points are not the quality they once were, everything has to be right. If they lasted 8 years, that is wonderful!