69 Cuda Heat / AC fresh air intake alternative?

Thanks for the advice. The tube duct work sounds interesting. I will have to take a closer look where the water drains also. To answer your question, while the car was in the body shop, the vent fins were cut out and a custom shaped piece of sheet metal was welded into place and then the welds were ground down. I am currently looking for my box of timeline resto photos. I will let you know when I find them.

The drains are on either side of the cowl duct area. You can actually see the drain holes if you look (with your hood open) at the area near the rear part of the fender (SEE PICS). You'll see two holes, one round hole and one half round hole. The half round hole is where water will drain once it get in through the slotted vents on top by the windshield. The big round hole makes it easier to clean out the smaller hole because all kinds of stuff gets trapped in there (bird feathers, small tree twigs/sticks, leaves, pennys, etc). Once the hole is plugged (like mine was) the stuff gets wet and stays wet. We all knows what happens next???? I plan to paint some undercoat in this area later now that I've cleaned it out.
But that's not enough....anyone who has cleaned out these rats nests will also find tons of stuff (40 years worth) packed into the lower fender area where all the junk ends up after years of driving. Once you start cleaning the lower fender area you're not going to believe how much stuff is there rotting your fender away (POOR DESIGN!!!). Many Mopar (Cuda) owners know how these cars rot near the lower rear front fender area...THIS IS WHY!!

Hope this helps!!!

Treblig