A couple of things to remember here.
Boost is only 17 PSI you almost don't need alky (especially with 94 octane)
It's real knock, not something loose. Since it's wicked fat it may be rich knock. I might back the alky down a little. At 18 PSI if you back the timing down you don't need much alky at all
If you notice it happens right as you mat the gas.
Airflow seems low for 10PSI but the MAF looks responsive.
Seems like it's struggling to get RPM too, also a sign of it being rich.