Engine 1988 351 Windsor (very low hours)
Engine turns over, gas to new carb, FIRES but will not continue to run.
This seemed to be an intermittent problem prior to date but has since become a 100% failure issue.
Checked voltage to and through ignition switch (new), battery, etc. All is OK. Cannot get any reading at the battery side of the coil where I believe there should be 12+- volts when the key is on? Perhaps this is the trouble spot and if you agree what could cause a disconnect to the coil?

 

Yes, when the key is on, you must have battery voltage to the coil; If this is the old E coil, then check the connector; the pins had a tendency of pushing out of the hardshell on these.
And trace the wiring back around the coil; there might be something amiss in the loom.