Yea good idea about the thread hijack LOL. Dave I can send you a bunch of pics and measurements of mine if you need them. It's all original and I have a C3 dual point dizzy. I knew it would fit with no issues plus I had it already. Even then there is only 1 1/4" from the top of the cap to the base of the aircleaner. And like 3/8" from the back of the cap to the front of the carb linkage.
G.