Need help with this vacuum reading

Try videoing bringing the idle up slowly instead of stabbing it,also bring idle up in gear.Will be able to see readings then.Might help?

Here you go.....I could only get up to a little over 1500 in gear.....was in my garage.....does this help?

http://s349.photobucket.com/albums/q391/shadango_bucket/cuda video/?action=view&current=vacuum02.flv