Thanks guys for your advice, I missed some of the legalities the first time I read the rules.
Bill, you've got it right, if I go to Production I'll want to improve my cars performance. I read many of the messages on the Prod site and it was good to see a few names from this IT site.

My plans are to continue to research and decide on which car to convert. I plan to race ITA with my 72 V6 Capri next year, and build and test my Production car in preparation for the national event in 2006.