Spent most of today changing my spark plugs, back and front. Turned out the old ones were well shot, new ones have made a good difference, engine sounds better, and drives a little better.
Tbh I didn't think there was anything wrong with the way it was driving, but had these for a while and finally got around to installing today.
Job pretty straight forward, even the back bank, just took longer than I thought.
I have a pic of a back one coming out against one going in I must get uploaded.