Quote Originally Posted by DennyW
I had to read back a little. That means you cannot get enough fuel for the idle circuit, which means the carb needs to be a little bigger, or the power valve. If you can back the mixture screws all the way out, and it doesn't change, that tells me there there is not enough. It should go rich at that point.

yeah it did that to the 2 q-jets 800cfm and the holley 600cfm