The coil wire going from the coild to the opti should have no resistance, correct?

 

It's going to have some and it will depend on the makeup of the wire.

 

When you check it,move the wire around and make sure the number does not change.

 

Some speed shops, and yes, even your standard parts stores (AZ, AA, OR, NAPA) have displays, typically MSD, that allow you to test the resistance of several wire options. Understand what the resistance is (I'm being friendly for new comers), then weight your options when purchasing keeping in mind your price range. In addition, it's a shame that Summit, as informative as it may be at times, doesn't have a resistance spec on the wires they offer.

 

Resistance essentially doesn't matter for (new) spark plug wires. High voltage travels around the wire, not really 'through' it. OEM carbon resistor wires are like 2000ohms a foot or whatever while MSD 8.5mm superconductor wires are like 10ohms per foot. There only real difference is the MSD's blast a bunch of EMI/RFI.

 

He's right. You don't have to have super low resistance to have a good powerful ignition system. What you don't want is a bunch of breaks in the wire, bad insulation, or terminals & boots not in good shape. Wires do go bad eventually and start sparking internally, or the insulation fails, and don't forget the coil wire gets 8x sparks more than the other wires, so it needs to be replaced more often. Modern automotive wires are a coil wound around a core, mostly for EMI/RFI reasons - all those computers in your car. The wire is expensive, so cheaper wires sets skimp there.

Also, whatever you measure with an ohm meter isn't what the electricity does since it is traveling through a coil of wire at a certain frequency. But it can tell you if your wire is breaking up inside or is open circuit or for some reason way different than the other wires.