help diagnose whining noise

AJ/FormS said
I'm kinda with inertia(post9), vacuum. I cannot ever recall a throttle position whistle-sound not being carb or intake related. But, boy, it's being inside is a real poser allrightey!

It's possible since he said it only does it when warmed up.

Did we ever get an answer as to if gassing it makes it go away for a second till vacuum comes back up?