Howdy all. Glasair driver here... Lycoming IO-360 B1A. 800 since O/H. Bendix mag on the left, Lightspeed EI (Hall module) on the right. I have an interesting dilemma that is confusing numerous mechanics. For many years, my engine ran fine... EGT's around the 1370/1380's, and CHT's in the 380's...