[Hotfingrs]

Without having a really clear picture, I can only offer a few guesses. The heat range of plug looks to be a little to hot, there should only be 2 threads discolored from heat. and it looks like about 4 on those plugs. Initial timing looks about right, but seems like you have to much total timing. Also there should be about a .020 brown ring around the tip on the insulator, if it's not totally around the tip and not there, it also indicates to much timing. The ground strap should change color exactly in the middle of the bend. Towards the threads is to much timing, and towards the tip is not enough. The discoloration at the end of the ground strap also indicates where your initial timing is. Is that melted metal on the top of the electrode in the top plug??