Paps, John Roman used to come to our BSA club meet every year but I haven't seen him for awhile. He really knew his stuff. How is he? I hear his son is still running the business.
I talked with Steve Collins today and he told me that the 930 series concentrics are still available new and he has some in stock. About $175 each. When I think of all the possible problems with old ones, they're probably worth it. He also handles a nice single carb conversion kit. If an authentic restoration isn't a priority these are easier to tune and maintain. No new monoblocs but he may have an old one. I didn't see any complete carbs at the BSA club meet this weekend. Lots of parts though.