We’re not going to identify which airplane these plugs came out of, but when you’re pushing the edge of what an air-cooled engine can do, it occasionally can cost some money… and parts! Careful tuning and tweaking is what the early part of the week is about, and it is not uncommon for folks to teeter on the edge of mechanical possibility now and again. Fortunately, the engine these came out of is living to fight another day, and qualified just fine for the field—with new plug, of course.
Now let’s go racing!
