1972 Demon 340 engine mods

Ok so distributor wire is like 11 inches long and it’s 5kOhm, 6 out of spark plug wires are over 10kOhm, where 3 are over 12kOhm (not the longest).
I stopped here now and bought new wires + new plugs. Will come back to it after I get them.
If there is anything else I can check please let me know.