Any body ever try a BPR8ES. It is a projector style plug. The center electrode sticks out a little farther. I am going to check clearances next time I have my engine appart. I guess I could gap it really big; and then put it in roll the engine over by hand; and then check to see if the gap changed. If the spark was down in the cylinder a little more I think that would help performance, but they might foul easier.
josh