SEMA has just compiled a bunch of legal information about titling (and such) by state. Check it out:
http://www.semasan.com/main/main.aspx?id=62843
Look at Illinois, for example, where a Superformance Cobra Replica can be legally titled as a "1965 Superformance". Such legal title is acceptable by CA for transfer. There are other states with similar titling procedures, which are also acceptable by CA for transfer.