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

PRH said

Off the top of my head, I’m thinking the highest TQ/CI combo I’ve ever built came up a bit shy of 1.44/ci…….it was 1.417.

A 14:1 572 with cnc ported Indy heads, a TR and a .800” lift roller cam.

It seems like those numbers are much easier to achieve in theory……..than in actuality.

Only a handful of the higher end builds that have been dynoed here have topped that mark.

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I would believe that to be so, 1.20-1.29 lbs-ft per cid seems to be reasonable goals a lot should be able to get with parts that are available to us you see some hitting 1.30-1.35.

Basically I wanted to see what it would take for a 360 to act similar to an average efficient 408, I'm just wondering what the extra step are required to get more up to the 1.35-1.45 range I have a vague Ideal but you never hear what in particular.