Plug wires ?

Most ignition wires are packaging and marketing, few have much substance or are worth the premium price. I'm not qualified to say which is what.

We had an engine on the dyno with a MSD 6 ignition box and MSD wires. Kept having problems with the data acquisition system being molested by EMI/RFI. MSD wires shoulda killed that, but they didn't. No matter how we routed them or what else we did, still the problem. One of the guys did some reading (no idea where) and bought some wires from Magnacor. Problem disappeared with their install. Sold me, no MSD wires any more.