Thanks... here we go:

Test # 1
CO %
Idle 674 rpm
3.00 MAX, .24 measured
2500 2585
3.50 MAX, .07 measured

Test # 2
CO %
Idle 862 rpm
3.00 Max, .16 measured
2500 2478
3.50 MAX, .05 measured

Test # 3
Idle 974 rpm
3.00 MAX, .55 measured
2500 2535
3.50 MAX, .08 measured

It runs smoother now than before. I'll probably lower the idle a little though. No dieseling on shutoff.