Thanks Michael. I knew I could count on you. I agree and felt the language of the article to be generic... There was no 400mm Momo, aside from that big Monza wheel I had. But, that wasn't a true Momo. Could they be referring to a standard wheel as a standard competition Momo of the time which would 350mm for the most part?
Sorry Raj to have turned another nice car thread into one of the steering wheel variety. Okay, I'm stopping now :D