Still hesitates off throttle...

Killer6 said
He's talking in the driveway in park/neutral, raising it, then winging it. That would be close to on the nuggets.

well, I get what you saying
but when you "wing it", manifold vacuum still falls to "very low" ; not 15 inches at the Vacuum port at full throttle.
Ok let me rephrase that: I've never seen that behavior.