Spark Plug Wires Question.

How often do those needed changing?

Arent you supposed to do a tune up every 50K? I usually change out my plug wires when I do this along with all the other things relating to a tune up.

Unless you have upgraded the rest of the electrical system, like the coil packs and such, the larger wires aren't really going to do much but look good. They will last a little longer since the insulation is better, thats about it.

I believe MSD makes upgraded coil packs, along with better ignition boxes, and plug wires.

Magnecor makes some really awesome plug wires, the best that I've seen.