No matter if you want the current sent to the spark plug non resistance wire is the way to go. No large aircraft engines have used a resistance wire to the spark plugs. High resistance in the secondary causes more voltage to be created in the coil, helping the possibility of flash over, very undesirable, and can easily happen at high altitude do to less air pressure. Would you run a high resistance large spark plug gap in your old 235 with old points? By the way the aircraft engines I speak of used a .012 -.014 spark plug gap if memory serves. The goal is or was to keep secondary (HV side) resistance low. The main reason for resistance wires was RF interference in vehicles, of course aircraft wires are totally shielded in a wire mesh tube of sorts.
