Did you touch just the end of the plug wire (spark plug end) to a bare metal part on the block? You will need to have a spark plug in the end of the wire or stick a screwdriver in then to touch the electrode, then hold screwdriver 1/4” from a good, clean metal ground.
Carb: ok, stock so that’s...
Firstly: won’t turn over means the engine doesn’t spin: engine cranks and turns over are the same thing. I think you are meaning it turns over but won’t start or try to start? (If it’s not spinning the engine, skip to last paragraph).
So on the assumption you turn the key, starter engages and...