thebean311: that tube is a crankcase ventilation tube which allows crankcase gases to be vented back into the air inlet tube to be sucked back into the engine to be burned up. All that is doing is relieving pressure. You could have the tube pointing straight up in the air and it shouldn't effect anything. It shouldn't make any difference on idle but if it did, oh well. Mine looks just like your pic, by the way. It sticks out a bit. It's not supposed to have a clamp or anything in it. It just slips in the hole.
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1996 Mustang GTS