I just passed GA emissions, so here are stats compared to mine just for
information's sake:

Test 1: %CO2=14.5  %O2=0.6  HC PPM Max=131 Measured=131  CO% Max=0.87
Measured = 0.37  NO PPM Max=1085 Measured = 1492

Test 2: %CO2=14.9  %O2=0.4  HC PPM Max=131 Measured=40  CO% Max=0.87
Measured = 0.04  NO PPM Max=1085 Measured = 2131

Mine:  CO%=1.45   HC PPM=179   NO PPM=1788 at 25/25 test 2000 rpm
          CO% 1.38   HC PPM=174  NO PPM=1946 at 50/15 test 2000 rpm

Last year my HC PPM was the same.  I now have advanced timing, new plugs and
new air filter.  Last year I passed the test despite a loose/leaking header
at exhaust port #2.

Chris S.