[S1965C]

Moriarty, after you follow what Gary has suggested, you may also want to install a lower power valve. If you’re pulling only ~6 inches of vacuum at idle and currently have a 6.5 valve on the primary side, it’s already bleeding and you probably have a very rich idle condition as a result. But adjust the throttle blades first to determine what your corrected idle vacuum is before throwing parts at the carb.