Midget 1500-CA Engine Rebuild

I am considering rebuilding my Midget 1500 engine. This is originally a
California car with the CA Emission setup.  I would like to rebuild it to
non-CA specs.  Does anyone know of any differences that are internal to the
engine?  I assume that there is a different cam due to the different
ignition timing recommendations between CA and non-CA cars. 
 
Thanks, Ben
Ann Arbor, MI 
'76 Midget 1500
 <http://www.gwplastics.com/>