The math that I was using as well as the idea that the carb position is not critical to the acoustics is from D. William Denish from his V-Twin tuners handbook (2000). It is concerned with the math of racing. It is hard to find and is listed on Amazon for between $200 and $425. A friend who drags Harleys had a copy. Stuart told me it was his main source of information for the build. He did 146 mph for the record at Bonneville, but went 160mph in one practice run. Last year the blown version did 171 mph at Lake Gairdner for a record. That's my best shot!