Here is the email I sent to the SCCA concerning my situation, I would much rather run the stock 14" wheel size because the tires are much cheaper, and the wheels are lighter.

"I am in the process of building a 1995 Mitsubishi Eclipse RS into an ITA racecar, however I noticed a discrepency in the 2004 GCR concerning this car. In the ITCS section 7.a.1 (wheels and tires) it states "All other cars shall retain the wheel diameter fitted as original equipment for their make, model, and type." My car came with 14" wheels as original equipment, however in the list of cars under 1995-98 Mitsubishi Eclipse the only wheel size listed is 16", this seems to contradict the wheel and tire rule, which tire size am I allowed to use on this car?"