Looked at movie again...is that the fuel pump howling like that? On my TBI when I give it gas the flow of fuel increase...your seems to be dropping out and then the you run lean when the throttle body opens up... I am betting on a bad fuel pump - Napa carries them online... or the screen at the bottom of pump is fouled... CC2MC I believe just had the same problem. I cleaned mine out in 2011 - I was surprised I got any performance at all.
...A bad day water skiing still beats a good day at work...1995 Pro Star 205....