CV Performance Kit and emission inspection

I would rely on the mixture screw rather than change jets each time. Not sure your exhaust system will pass AZ requirements so you may need to put your originals back on when testing. This could present a challenge because the stock exhaust could make your jetting too rich.

Generally speaking if you have to change jets only change the pilot jet for emission testing. Because the main jet does not kick in until near full throttle it is unlikely that an emissions test will go that far. Twist the mixture screw in until the engine stumbles and leave it there until after the test. Whatever you do, don't let a test facility see you reaching under the carb to adjust the mixture. Most regulations call for the mixture screw to be sealed after a factory setting has been reached. While I don't live in AZ nor am I completely familiar with their testing I can only make these assumptions based on vehicle testing in California.