@DannyP posted:Maybe your throttle cable needs to be loosened? You could still be pulling the throttles open slightly even if the stop screws are backed out.
Or you have a vacuum leak.
Most guys on here have either Weber or Dell one barrel per cylinder carbs(Weber IDF or Dell DRLA).
I do know that the intake manifolds used with the Solex carbs should have a built-in channel to let air leak between the intake ports. You should contact the engine builder to verify what to do if the problem isn't in the linkage or a vacuum leak.
Thank you for the suggestions.
Jason