Foxbody 5.0 engine whine

Hey guys first post here, been having this horrendous whining noise coming from my engine for two years now and I can’t figure out what it is. It’s not coming from anything on the accessory belt drive have disconnected the belt same noise replaced distributor and oil pump still there. Please somebody give me a clue what this could be so I can get fixed i’ve included video
Thanks -Matt

View: https://vimeo.com/271492236?ref=em-share
 
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90sickfox

Wasn't a pretty sight...and I've got big hands
SN Certified Technician
Mar 2, 2015
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I had a car do that.... disconnect the hose on the valve cover.

The house was pulling a vacuum on the crankcase. It made a rediculous whining noise. Disconnected that hose and the noise stopped. Used on of those little breather filters....problem solved.
 

Steel1

Mustang Master
Aug 18, 2017
1,419
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Connecticut
I was going to ask what kind of throttle body your running because I know BBK can whistle
but that's usually at idle. If I'm hearing it correctly sounds like the mystery noise continues with rpm,
just a thought.