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

The article you have brought up has already been posted in the "Magazine Builds" thread.

You would also be wrong about gaining another 91 ft/lbs being "not that hard to get". J.Rob

Modifying And Testing A Dodge 360-Cube LA Small-Block On The Dyno

None of this stuff is hard to do…until you have to do it.

You aren’t going to do normal tuning and find 91 pounds of torque unless you are starting out so bad you shouldn’t be building engines anyway.