67 dart emissions

I'm not positive on this, but, if this is the idle setting, find out what the highest idle rpm that is allowed for the test. It's not usually what the factory book says to run. Bump the idle rpm up to or very close to the max and live with it until the test is over.

Just make sure it's not off the idle circuit when you get done. Idle mix screws not changing vacuum/speed will be your hint.

Maybe one of the smog tech guys will chime in.