[sloop]

EGR will not help your CO or HC levels, only NOx.. Here are some sites to check out:

http://www.motorage.com/edindex/1200feat1.htm

http://people.ucsc.edu/~kbrandt/mustang/smog.shtml

http://www.myzero.com/engine/egr.html

Mark
83 CJ-7 and 76 CJ-7 with stuff