If the engine feels good, leave them. If you're not sure, get some KV85's. If you're leaving the engine pretty much standard, you probably won't notice any difference between either lead type. If you're planning on doing some heavy mods, it's worth replacing all components like that with something of quality; to guarantee no 'weak links'.
Really depends on your application. I'd probably leave them for now if they work well enough, and put them down the priority list to replace with Magnecor's when it becomes relevant.
If I was sensible!!
In reality, I tend to fit brand new plugs, leads, dizzy cap & rotary arm (if necessary), filters, and oil whenever I get a new car. Just so I know it's all working as well as it can.
Whatever you think though. Those leads will most likely be fine for an every day application. I'd imagine they are very similar fundamentally to Magnecor's anyway - just a bit old that's all.
no pink, dammit!!!
