Plug gap

TT5.9mag said
Any time I see an ignition test, and that includes ANY spark plug gap test, where they only reference peak HP I know it’s bullshit. WHY?

Because the load on the ignition system, and the plug, is highest when cylinder pressure is highest. And that happens at peak volumetric efficiency, which is (and always will be) at peak torque.

I don't have any fancy equipment for testing, but I do have good ears and eye site. A have been using an Axcell Super Coil for years and never had a glitch. I also use their copper wires and the plugs are always clean. The gaps may widen due to 30,000 miles of use at tune-up.