It's probably set at 1 and 1 from the factory. 3 (base edge) would raise the edges up quite a bit from the snow and wouldn't be great for anything but heavy park riding, especially if you are hitting urban or technical kinked features. With the 90/88 edge tool, you will only be able to get either 0 or 2 degrees. You'll need a 3 degree tool and you'll one specifically for the base edge and one for the side edge.
If you don't understand how the geometry of beveling works, I'd highly suggest taking it to a trustworthy shop that can set it up for less than the price of a tool, since a good tool can be well over $40. After that, just maintain the edge with a diamond stone and a hard gummy stone being careful to make light passes.