Here is the video that we took BEFORE the vacuum leak was fixed at the intake.
https://www.youtube.com/watch?v=Gbt6ai8AI3A
Here is the the video that we took AFTER we replaced the intake gaskets and the vaccum leak was fixed. The idle is a little higher than I would like. This is around 1,000 RPM at idle. (knocking noise still present)
https://www.youtube.com/watch?v=Yq50JqWYRqQ