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

Dan the man said

I thank you for explaining this to me. It's really a lot more involved than I imagined when going from just a fun car to cruise around in to one that makes some serious power and torque.

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When talking torque per cid were basically talking efficiency so for a given hp per cid say 400 hp 318, a less efficient (tq:cid) 318 engine is gonna need more rpms to make 400 hp cause it's making less torque per revolution, where a more efficient 318 can make the 400 hp at a lower rpms cause it's making more torque per revolution but for the most part both are able to make the 400 hp.

So like in this example in this thread if you could make a 515 hp 365 make 1.44 lbs-ft per cid it should make the power at the same/similar rpms as the 515 hp (1.29 lbs-ft per cid) 408.