Hey, I just went and changed the plug wires (doing full tune up), and I was just wondering if there is any way to tell if the wires i just took off were the original factory wires or if they had ever been changed...

they are blue nkg wires... each one has two peices of black sheiding that slides on the wire, but is not like split loom, its on there perminently... are these the origional wires, or did the prev owner change them?

btw, i have a 91 vert

 

seem original by the sounds of it

 

No real way to tell if they've never been changed, but those describe the OEM wires exactly. Which for most applications is a good choice.