You can do it, but most guys are tearing em out of the bow.
From what I've read over the years (never had a bow tank
myself) it seems that they'll really throw off the weight and
balance thing. It'll cause the boat to ride bow heavy and scrub
off a considerable amount of speed.
I suppose if you just filled it when you wanted to take a lengthy
cruise and you weren't concerned about top end, it wouldn't be
a big deal.
If this is yours, you have a nice looking boat.
http://www.***boat.com/image_center/...267big_pic.JPG