MSD 8.5mm Super Conductor Spark Plug Wire Sets - 31223 Black 90 degree V8
MSD 8.5mm Super Conductor Spark Plug Wire Set - 31223. MSD 8.5mm Super Conductor spark plug wire sets feature a special helically wound core that has just 40-50 ohms of resistance per foot—but with an RFI suppression equal to a 1,500 ohm wire.