Carter 2BBL carb- I am stuck

I never will understand why some people say there is a set number of turns for air screws. That's just not so.

Get your vacuum gauge out. With the car warmed up, block the drive wheels and set the parking brake. Connect the vacuum gauge to a manifold vacuum source.

Start the engine and drop it in drive. Take note of the vacuum reading. Starting with one side, screw the air screw clockwise until the vacuum reading drops and the engine begins to stumble. Then, back the screw out until you achieve the highest vacuum reading and then 1/4 to 1/2 turn more. Repeat for the other side.

If your vacuum doesn't drop or the engine doesn't stumble when the screws are tightened, the carburetor needs attention, or you have a vacuum leak.

Of course, the carburetor is the last thing to adjust. Make sure the timing is set properly first or you will be forever chasing your tail. It's all in the factory service manual. It's no magical secret.