Pretty much no modifications (I grew up in California and they were doing emissions sniff tests back in the 1970's even).
That said, this may be helpful to you: http://www.arb.ca.gov/msprog/aftermk...es/amquery.php
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Currently in my Garage:
2011 Camaro 2SS/RS Convertible | 1980 Corvette Stingray | 1981 Firebird | 1968 El Camino | 2007 Crown Vic Police Interceptor | 2001 Silverado | 2001 Blazer | 1965 Chevy C-10 | 2007 Harley Softail Custom | 2013 MX-5 in Copper Red Mica | 2000 Corvette Convertible | 2010 Corvette Grand Sport | 2006 Audi A3 Turbo | 2008 BMW 328i
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