Today I decided to check my spark plugs. I had them changed many years ago but drove the car so little that I didn't see much need to check them. I've made a few changes on the car and thought it would be good to see how they look. Anyone with a 440 knows the 7 & 8 plugs are no joy to access and change. They aren't the worst I've done by a long way but still not something one looks forward to like a child on Christmas morning. I got to the 5th plug and took it out. All the other plugs were Champion RJ12YC except this plug was a Champion RJ14YC. It also looked pretty bad, much worse than the others which all looked just like you want to see them. Things like this have happened before when I've let someone work on my vehicles and it's another example of why I do my own work.