I bought one from him and it sat in the box a year or two. I just recently installed it and the difference was amazing. Running the round coil. It took a slightly longer screw to make the coil bracket to hold it correctly, Running two Carter Weber carbs, 12V generator and the matching voltage regulator of 55-56 vintage. It starts better, idles tremendously better even with a lumpy cam. Go for it. You will wonder how you put up with the points as long as you did.