What type of wires and plugs do most guys use?
I found the following notes on a website relative to using an aftermarket fuel injection on Harleys and I thought it was useful because he says “The biggest problem with spark plugs for Harley – Davidson engines is fouling”, and that’s typically our problem too: Three types of spark plug wires are commonly available: original equipment style carbon core suppression, low resistance spiral core, and solid core. Carbon core suppression wires cause some energy loss due to their high resistance (about 5,000 ohms/foot). Replacing carbon core suppression wires with low resistance spiral core wires only increases spark energy by about 10%. Contrary to any claims, you will not see a performance improvement by changing spark plug wires. On the other hand, carbon core wires can deteriorate over time and any wires more than a few years old are candidates for replacement. If you are going to install new spark plug wires, buy a set of low resistance spiral core wires. Most are less than 500 ohms/foo
