Emissions help

I think you should sue Arizona. The only cars before 68 that were EVER DESIGNED to pass smog tests were 66 and 67 cars built SPECIFICALLY FOR California state

But on a more practical note, who set the idle mixture and how did you set it? Generally you want the car fully warmed up, and the idle mixture set "toward the lean side" (clockwise) from the vacuum/ RPM peak. 'Tarding the timing helps some, which is the very first thing all the manufacturers did in the 68-later era.

Also, "what shape" is the engine in? If it uses oil, or if the carb / ignition/ tune up is in generally bad shape, it won't pass.

Frankly I think expecting a car that old, and ESPECIALLY one which never was required when built to meet any smog specs is an insult to one's intelligence.

Don'tja think it's about time Arizona got onto the same planet as some as the rest of us?