The picture showing the Flattie with the pair of air cleaners looks possibly like the older Stelling air cleaners which were taller than the Spotlite Kustom air cleaners that are now available.  The Spotlite air cleaner assemblies will fit the standard Teapot 4V carbs and therefore should fit the model 1901 2V carbs.  The Spotlite air cleaners however do not fit the 1956 Lincoln Teapot 4V carbs and these carbs are simply taller.  The older Stelling air cleaners fits both heights of Teapot 4V carbs (’54-’56 Ford & Mercury, & ‘56 Lincoln) while the Spotlite air cleaners are restricted to the standard height Teapots.
 
Here’s an alternative air cleaner setup currently available on EBay.
 
Here’s the link.
https://www.ebay.com/itm/DUAL-QUAD-FINNED-AIR-CLEANERS-PAIR-2X4-CARBURETOR-CARB-INTAKE-RAT-VTG-HOT-ROD-V8/253732826282?hash=item3b13a7acaa:g:2DYAAOSw6GJZ~PA3 

Lorena, Texas (South of Waco)

Same aircleaner, different mesh? Hard to tell from the pic’s for my old eyes.

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ

https://www.jalopyjournal.com/forum/threads/2-x-4-flathead-intake-pics.604795/

Kinda looks like these. They are definately on my list

There was a discussion a while back, I think it was here. Maybe these?

https://www.spotlitekustomaccessories.com/store/p7/V8_Dual_Quad_Air_Cleaner.html

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ

I'm talking the holley 1901. It measures out as a 5" flange, so a 5 1/8" should work but the hard part is the 4 1/4" of accelerator pump that sticks above the flange. Also i'm running them 2x2 so i can only fit 8 1/4" of diameter before they hit too. 

Thoughts?