It's interesting. Running "solid" copper plug wires I'm guessing also. Which is what you want.
Could be fuel or a blockage/jets too small, since Idle is good and vacuum at idle.... but at top speed, no good. Could rig a vacuum so you can see it in the cab.
But you mentioned that it stalled and wouldn't start till later, Since you replaced plug and condenser. Try a new coil. Rotor or caps could be an issue.
Hows that for narrowing it down!!
Best of luck! Post what you find out.
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