In case you did not know, this year there are going to be three AHRMA nationals run in the southwest.
The first will be on March 29, 30 at Firebird Raceway, just south of Phoenix
Number two will be at Sandia Motorsports Park on April 12, 13. Sandia is about 40mi. west of Albuquerque.
Number three is going to be on April 26, 27 at Spring Mtn Raceway near Pahrump NV, 40 miles from Las Vegas.
For more information check the roadracing schedule at: AHRMA
In addition to Vintage classes for motorcycles manufactured prior to 1973, there are also a set of classes for modern twins and singles.