I assume you are talking about a Mathews one piece quiver?? If so it has a couple allen screws you can loosen and slide the rail tighter or looser where the shafts hit the quiver. If you want to put your quiver upside down, which I have seen at a few 3d shoots. You need a left hand quiver mount or vice versa if you are left handed. Also by always slipping your broadheads back into the hood foam it is dulling them a little.
Hope that helps:)