Air cleaner intake assembly or snorkel specific to the one year only 390-2V premium fuel engine, (X code engine). This version has the vacuum operated trap door. There was an more common thermal version that used temperature to open the trap door to the heat stove. In most cases the vacuum valve will not be working. Most people are probably better off with the thermal version. We do not know the change over date.
Ford part number C8WY-9A626-A.
*Note - This snorkel has a different spacing on the mounting ears, it will not mount to a 390GT air cleaner base.