Like Kirk said, what gets to run in ITE depends on where you run. For the MARRS series, and the WDCR races at Summit Point, ANY non-T/non-SS forced induction car runs in ITE. So do any of the ex-WC/GAC cars. They also have SPU/O, as well as ASR. I've seen Frank Sanchez run his 'few more goodies than TransAm' Camaro in ASR, but I really don't know what the rules are. Seems like yet another catch-all class.

So, the assumption that ITE cars will have an 'IT-like' level of prep, is not valid, unless that's the way the ITE rules in your particular area are written.