Several years ago someone posted a scanned (or photograph) of a paragraph or two from an older Direct Connection technical bulletin. It was describing how to place your finger over the air bleeds on a Six Pack carburetor and by listening the the engine sound "meaner" or slowing down, one could determine if the idle circuit was lean or rich.

I have been trying to locate it but haven't had any luck. Does anyone have a copy of it?

Thanks!

Stan