BBD question.

I went with the JB Weld on the butterfly hole. I did a lite scuff of the area, cleaned it with rubbing alcohol, and gave it a dab. Idle can now be set to the 650RPM factory spec.
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Got the Clifford headers and pipe welded back to a Y at the transmission cross member and took it for a spin. Stumbles real bad from a stop for the first five minutes. Doesn't stumble at all revving it from idle while in neutral. All I did was bolt it on and set the choke linkages. Guess I'll go back and look at the float, accelerator pump, and any other settings listed in the Motor Manual after I finish opening up the rocker arm oilers...