B&M Converter is bad

The way I have always adjusted carburetor a nd had good luck at it. Is setting the idle around 800rpm or so (don't want to set idle to high or it will not be running off idle circuit and the adjuster screws won't work correctly).

Then I start on the right side and turn the screw in until it starts to stumble the idle and then I back it off a 1/4 of a turn. Then repeat on left side. Then I repeat the process again just because. Then once that's done I set my idle where I want it.