"hopefully I can run locked out timing"
Wrong answer.
That's great for an industrial engine that runs a steady speed any and all times it's running/
Something like a generator or a irrigation pump, etc....
But for a cruiser car that is the last thing you want. Because an engine like that runs a range of rpms and depends on where you are in that range at any given time, the timing you want changes with load and rpm....
I saw Edelbrock carb, not injection in your list. Only other time locked timing works is when it's controlled by a computer.