Is there a way to change camera pitch limits?

[Apjjm]

I'm currently working on a full conversion mod. However, it appears that the player can only look up/down by about 80 degrees each way - I.e: Can't look vertically up or down - which would be useful for the mod i am working on. I've been hunting for a setting in the game.cfg files but am having no real luck with finding it - I am hoping I have overlooked something, so if anyone knows if such a setting is in the files (and if so, what it is called) it'd be greatly appreciated!