Stock APT and idal mixture screws setting

[Mr48willys]

Hi
    Does anyone know what the stock setting for the APT and the idal mixture screws are. I live in California and need to pass smog. Trying to get it back to stock as close as possible to pass smog. By the way it is on a 1981 Chevy blazer 305. Also if anyone has any tips for smog and the carb I wouk love to know about them

Thanks for any help

[Shark Racer]

Personally, I'd run the car on a smog dyno and dial in the APT at 25mph on the dyno, then set the idle mixture screws.

[Cliff Ruggles]

Set the idle mixture screws for best idle quality at the leanest settings.

Set the APT using the "tip-in" procedure in our book.

This will put both idle and part throttle on the edge of lean, and should get it thru emissions....Cliff

[Freddiesbuick]

Set the APT using the "tip-in" procedure in our book. This will put both idle and part throttle on the edge of lean, and should get it thru emissions....Cliff

What "tip-in procedure"? What book....( I have the Rochester Quadrajet Carburetors book)? 

[Ethan1]

What "tip-in procedure"? What book....( I have the Rochester Quadrajet Carburetors book)? 

 From the front of Cliff's website:

 

[Freddiesbuick]

From the front of Cliff's website...

Yes I have that book but I don't recall seeing anything about a "tip-in" method for APT. In fact, I spent a lot of time reading chapter 6 about the power piston just looking for that specific info. Perhaps I missed it? 

[Shark Racer]

I believe it's in the performance modifications, it's an inset/sidebar. Look for a picture of a carburetor with a hand held over the primary flaps.

[Freddiesbuick]

Pg. 99, (chapter 6). Found it! Thanks!