This is something that has been done for years in racing to help squeek as much power as possible out of a "legal" engine. The real question is, is it worth while to do something like this on ours engines? I would have to say no because of the amount of wear we put on our plugs, that gap would not last too long and you would have to replace plugs like everytime you revved the engine. 2nd, is there really going to be a big enough difference in power to make it worth changing plugs every few thousand miles, not to mention the work involved in modifying the plugs to make them work. Good idea, but I would leave it to the n/a guys that can get to their plugs with out feeling like they did a 20hr surgery on an elephant.