I have been running NASA, and am looking to run some IT7 possibly. From reading the SCCA rules, it looks like IT7 is just an ITA RX7. Just making sure this is a correct assumption. I am located in the southeast, and it looks like IT7 runs a Toyo as a spec tire. My car was built for ITA and it is a 81 RX7, so I should be ok to run IT7 as long as I run Toyos correct?