Dear George, Loren, Walt, and mid-60 Buick open-minded to
"mods" types . . . . .
What is the cowl vent for? Just to bring air into the vent system?
Well yes, Buick only intended it to bring fresh air into the cabin. However, since it is a source of fresh air at ambient temperature, it could be used as a source of air somewhere else. Since the engine bay forms the front wall of the cowl region, it is a comparatively simple
"mod" to build for yourself a cold air intake system that grabs air from the cowl and brings it directly to the carburetor or throttle body.
This isn't something I can take on right now, but I think I'll have to come up with a system like this one of these days. While I was logging some hot starts with my FAST Sportsman, I was getting engine intake temperatures of over 150? F and that's with the hood open!! All this when the air temperature at the time was in the mid-80s. I think my trusty wagon's engine really could use some sort of a cold air intake.
Cheers, Edouard