Re: NGK Spark Plug
the plug on the left goods pretty good to me and with that extended electrode like that it would able to get the fire lit better that the stock plugs you've all seen the poor boy hot rodding of the ground electrode that I do as told to me by a guy in Mo. that competes in chainsaw racing this plug that you've got wouldn't need to be modified. with that plug the flame kernel will be right in the middle of the compressed fuel mix , it may be the way to go.
Now I'm going to have to go to the engine shops and look at the plugs and see what I can come up with in a champion plug.