With a new carb, there are three things you want to do:

1. Adjust float level. This has to be done first because it affects the next steps

2. Warm up engine even if you have to keep foot on for 5 minutes. Then adjust idle speed screw to about 750 rpm

Some of newer carbs have a vacuum- or electrical-energized idle stop. This acts directly on the throttle linkage.

3. Finally, adjust idle-mixture. Then re-adjust idle speed. Then final adjust idle mixture

Don't worry too much about the emissions stuff, it shouldn't affect idle (other than the anti-diesel and idle stop, and keep the EGR blocked off (as in your picture) to test, and all the vacuum ports blocked).

You did verify the anti-disel valve 'clicks' right? Just having the wire hooked up is no guarantee ...