Where is the tube "left sticking out" comming from? Is the hot air riser comming from the passenger exhaust manifold (big fat giant sized tube), or is it attached to the oil fill cap on the driver's side valve cover? (or is it something else that's not comming to my mind at the moment *LOL*).
If it's the breather tube from the oil fill cap, replace the oil fill cap with one that is vented (and filtered), but doesn't have the provision for the breather tube.
If it's the heat riser, just pull it off and throw it in a drawer.
If you always do what you've always done,
You'll always get what you've always got
http://www.classic-mustang.net/johnpro
If it's the breather tube from the oil fill cap, replace the oil fill cap with one that is vented (and filtered), but doesn't have the provision for the breather tube.
If it's the heat riser, just pull it off and throw it in a drawer.
If you always do what you've always done,
You'll always get what you've always got
http://www.classic-mustang.net/johnpro