[Karl Bebout]

Hi Glass, I haven't felt the need to squeeze every last bit of power out of an engine since I quit racing, decades ago. I did the indexing thing and cutting the ground strap back hoping for that last ounce. Even went on a diet before the season started.

If the ultimate is what you're after, drop the bucks and give the E3s a shot. Otherwise, just stay with the Autolites. They will plug the hole and make the spark, just fine.