I know it's a Ford & all but some good math here too...
	
	
		
			
			
				
				Ford, Galaxie, Mustang, ram air, Thunderbolt, home made
				
					
						
					
					www.dazecars.com
				
			 
		 
	 
been done a long time ago
could do it with a big oval fresh-air cleaner like the Ramcharger or Air Grabbers had 
pipe/ducting ( alum. 3"-4" pipe) it into the 
fresh air unit/'air-cleaner', 
from the inside headlight buckets with a bell behind a screen
& use a piece of aluminum or thin steel to go around the outside of the base & top
still be able to use a filter in it for street driving, take it out for at the track & have a real ram air effect, 
like the old Thunderbolts did, just better looking
I thought about doing that but I have a 6bbl scoop it's not needed
but if I had a car with a flatter hood that's how I'd do it
if any of that make any sense, 
not photos just **** in my brain I never did build
 
use the top & base & a flat piece of thin steel or alum 
with simple 90* angle tabs attached top & bottom & use dzeus fasteners 
maybe to attach it around the exterior, so it is still serviceable
you could still run an oval air cleaner on the street
I was going to use a 3" K&N