What would it take to make 1.44 lbs-ft per cid ?
Yes but meaningless without more context.
The highest you can get. Now you do not want to choke flow volume to get velocity.
In his second BBC book, DV has a chart with flow velocities for different heads, like stock factory, ported factory, aftermarket as cast, aftermarket ported. F1 heads are pretty straight down and flow in the 380 - 400 feet per second range.
A bunch of the torque you want to find will be found by attempting to get the port flow rate up to 350ft/sec. That high velocity comes at reduced pressure (Bernoulli), is converted to high pressure lower velocity in the bowl. This higher pressure aids the intake air/fuel to squirter through the valve curtain area.
Something to consider is 40° exhaust seats. This aids blowdown and allows tightening up split pattern cams for more low RPM torque. To get the result you are looking for, you need to have a loaded tricks bag, and use most of it.
As I stated, look into David Vizard's books; How to Port and Flow Test Heads, How to Build Power, BBC Power on a Budget.
Yes, you are looking at a Mopar engine and there are differences, but essentially the principles are the same. SBC head design is more like SBM in having the intake valves next to eachother, and sort of similar combustion chambers.
You definately want quench chambers and an exhaust scavenge plateau. You may want pistons with scavenge director to aid aiming the exhaust out the exhaust port at TDC. DV BBC book.