O.K., so besides being wrong about the original question. . . the 1.6L was moved up to 2255 January '06,
and also maybe making a poor choice in car for ITA (1.6 miata) . . . was the 2205 weight for the early 1.6L miata the "right" weight? Was that change made because someone was winning a bunch of races?
Thanks!

Neal Norton [/b]
Actually this is what happened (hope I don't double post with Jake):

In the winter of 2005, all cars were run through the classification 'process'. This process is used to classify new cars to the ITCS as well as cars moving around the classes (like from ITS to ITA or from ITA to IT. Because there was no documented method for setting weights prior to this new way, the ITAC wanted to 'reset' all the cars in the GCR via the process. This was don eso that we could move forward on a (theoretical) level playing field. Some gained weight, most lost weight. On-track results were not used AT ALL as a basis for the change - but in 99% of the cases, those results supported what was happening on paper.

The list was published in the Feb 06 FastTrack addendum located here. The 1.6 Miata has been 2255 for almost all of 2006.

1.6 ITA cars have had some success. Bret DePedro in the MARRS series and Mike VanSteenburg out of Florida both ran fast cars and won races.