Hood Clearance

I can tell you this: I have a 69 Barracuda. I put an Air Gap and and Eddy carb and and Eddy air cleaner with a 3" high filter in it. The clearance was a bit tight, so I called K&N, and was told about a 2.5" high filter that would fit the Air cleaner and outflow the 3" paper filter. That 1/2" of extra clearance worked great.