Leak down test with intake removed

This clip shows the leak coming out of the #6 head intake port - with no pressure from the lifter because I backed off the rocker nut as demonstrated by the movement of the push rod where there is no tension whatsoever... This would mean the valve should be fully closed due to the spring closing it. - Yes, the needle on the right is off it's mark, but it does work and shows air flow and pressure loss when the air flow is turned off. In the last few seconds of the clip I point to the lifters to demonstrate that both were in their lowest position - where the valves would not be pushed open, but rather the leak you hear is when the valves should both be completely closed and no air escaping from the cylinder.