The time has come to change the plugs and wires in mine. I was looking for what others are running in the normally assprirated models for spark plugs. I tend to drive basicly highway miles.

A lot of people run Autolites, or NKG. No need to get real expensive plugs.

The best way to look at it is how often you would like to change plugs. It is certainly easier the more often you do it.

Many run the copper core plugs, but they do have a short life. Iridium as the car was produced with will last much longer. In my mind it comes down to spend time or money.