What would it take to make 1.44 lbs-ft per cid ?

Just so you can understand the context
I do understand the context, you might if everything wasn't about your obsessions with the small.
from a Chrysler equivalent perspective its making 2.23 HP per Cube
You mean cfm ? 2.23 hp per cfm.
with a 318 head on a 318 engine. You can get far more flow from a 318 head than 195 cfm.
If everyone could easily get 450-500 hp out of 318 heads, you don't think people wouldn't be champion that.
I'm sure if the Robinson Crew wanted more air they could quite easily get it.
I imagine they could.
Its USING ALL THE AIR ITS GETTING. Like I keep saying you can give an engine more air it doesn't mean it will USE it.
No **** you act like this profound information. But doesn't mean it won't use more either, this engine has the cam cr etc.. To make more power and the fact that it basically flatlines above 5000 to 6500 rpm kind of shows that.

Look at the EM's 477 hp 323 mopar it keeps making power right up too it's peak hp of 477 hp @ 6500 rpm, makes 435 hp at 5,400 rpms same as the Old's peak hp @ 5,900 rpms and more hp everywhere above 5000 rpms, and below 5000 rpms both have there moments but make similar.

Sure the 323 (7 cid difference) is using a heads with a lot more flow and making less hp per cfm but has an overall better power curve and probably less port cc's per cfm.

https://www.motortrend.com/articles/0901phr-mopar-318-magnum-engine/