cherokee snorkle

I'm building a hommade cherokee snorkel. I know its kinda pointless and un called for but I think they look cool and I'm tired of cleaning out carbs and throttle bodys from deep mudholes. My questions are is this gonna change my air/fuel mix, is it gonne make my rig run hotter? Is it gonna hurt my power or idle ect... any body done one on a straight 6 cherokee?.