It dawned on me that due to the FE's intake manifold/cyl head arrangement that comparison of a tunnel port intake runner/port must have a synthesized runner/with pushrod tube to test flow rates.. Almost comical to run cylindrical pushrod tubes through the port and not try out making sharpened leading and trailing edges. 

I'm retired from filtration industry.. Somewhere I have a loose leaf binder with pages of stainless mesh wire cloth samples. Any industrial filter company has dozens/hundreds of feet of "woven wire" in inventory and laying around.
You need a couple bucks worth and unfortunately "minimum order" will likely be near price of a pick-up tube.

Be creative and look for food strainers or google:

"stainless wire mesh"

More pressing is why/how that original screen was torn up?...............shit shouldn't happen w/o a serious issue.

Unexpected/defies logic changes in power are often common.  There is a dyno analysis w/tune on a GT350 Coyote Voodoo on Y-T. They swapped X-pipe configurations and numerous exhaust configurations noting power and sound changes. The final addition of high dollar "Cooks" stepped headers vs factory Ford headers was a surprise in that little more the car's sound changed / single digit power changes up/down.   

In all fairness to Unc-T the evolution of FE blocks (reinforcements/factors/features that strengthen the blocks is vague at best. From my own experience I still find the 427s essentially square cylinder wall thickness impressive for strength/stability of the cylinder walls.  The 427s wall thicknes is typically sonic measured at 12:00, 3:00, 6;00......   Conversely IF bores are sonic'd at 1:30, , 4:30 , 7:30 and 10:30 wall thicknesses can be huge, so thick that if they were at  12:00, 3:00, 6;00 etc the walls would be:  In the context of an internal combustion engine, "siamese bore" refers to a specific configuration where adjacent cylinder bores are directly connected by a solid metal bridge, rather than having a cooling passage between them. This means there's no coolant flow between the cylinders in that area.

Simply the support/thrust of the pistons is enhanced by these thick wall "I beams" 1:30, , 4:30 , 7:30 and 10:30 wall thicknesses
 This is why a questionably thin sonic'd block should not be rejected.  Is this thick wall indexing strengthening viable in other FEs or series motors ?..... I don't have a dam clue.  But it dam well makes it clear FoMoCo didn't have to pay a penny more to casting. 

10 Points on whom-ever pointed out the smaller FE block dimensions then the BBC and Mopar.  The yearly additions in HP to fuel engines made for the FE's extinction in Top Fuel. 
Uncle Tony is sadly very poorly informed as his knowledge of the early HEMI/Mopar and especially FEs is immensely missing and tainted.  But heck 50-60-70s block features are very complex to know or even research .   
I'd say this Ford HEMI was a decade+ before the 1st Mopar Hemi.

https://www.youtube.com/watch?v=6p9eyUAIcX8

I do have to admit the Mopar.s five around head bolts may have been revolutionary and a "keeper" in T/F engines.  Though a quick look on webb looks like Mopar's current HEMIs use a 4'bolts-around cylinder pattern

https://www.enginebuildermag.com/2023/11/eotw-500-cid-top-fuel-hemi-engine/

 

Fascinating "fact's and video shots on "bottom ends"  Mopar vs Big Block Chevy with massive blasphemous bias on the FE:
Chevy/Mopar who copied who on deep skirted block, cross-bolts, "crows foot webbing" and "the FE was extinct/inferior at the time"/late 60s ?......
Sadly Uncle Tony needs a FE dropped off on his toe.


 https://www.youtube.com/watch?v=K3I8DtIY-Zs

 Good God it is actually comical sequential FE matching date/production tags on (3) NOS SOHC's galore.  Sure knows FE's: "it's called a 'cammer' because it has three camshafts ".......  Got to love the no-top/no-sides original shipping crate with a single steel-strap holding down the motor. 
Having a friend that was a Ford Industrial Engine representative and my actually owning a  NOS 427 LeMains shortblock the "facts" presented here scream BS over and over and over.    Recall sitting at RWJ's coffee table of his NOS 427 SOHC engine under glass and looking at it's factory FoMoCo cast iron exhaust manifolds w/part numbers.   
Really sad that anything goes now days when it comes to describing NOS vintage FE's/FE'$ .

https://www.youtube.com/watch?v=Y4-UtD4eX1o&pp=0gcJCY0JAYcqIYzv

https://www.youtube.com/watch?v=Y4-UtD4eX1o

Have a good day!

Sorry for confusing the dual sump pan issue I only wanted to point out that a second sump is near as useless or even worse then mounting a couple bottles of oil to the side of motor to add to lube system's capacity.    Thought I'd be courteous and not trash-can Brett in any way for installing such a huge mistake of a pan to begin with on such a magnificent state of the art example of a FE.