Hi all and happy holiday week. I am working on a 66 Imperial convertible that lived its existence in desert south west. It has two vents just in front of the radiator to divert air onto the radiator. I am not sure if it is factory or an after alteration. Take a close look at the pictures......the vent is in the metal pan just in front of the radiator. There is one on each side. there is a space in front bumper that would allow air onto the vent divert. I have not seen another 64-66 so not sure if its original. Thanks.