but when you want the cold air you have to raise the headlight door which means your headlights will be on (even in the daytime) unless you hook up a relay to have the doors open up from the electric motor on a separate circuit.

I miss the electric motor from my 70. Both doors would open up at the same time but with my 69...she winks one at a time opening and closing....bit of personality for all the pretty ladies out there...(even with a vacuum assist motor)