64 barracuda 273

Why talk about

HP below 3,000 RPM. HP is always low on any engine at those low RPMs. Talk torque at low RPM because that is where torque lives. Probably get a mess of attitude in response, so my response is to get an education under David Vizard.
Excellent choice.

Think about it.
I am a streeter and I'd venture to say that in terms of time spent at low rpm is 90/95% of my driving is below 3000. I have a 4-speed and 3.55s.. Normally, I shift at 2800, for three reasons;
1) cuz my 367 has a preponderance of low-rpm torque on account of the very high cylinder pressure, and
2) it just sounds so doggone good pulling from 2K>3K, and
3) cuz it hits 65=2880 , and then I drop it into overdrive.

Guys will say Horsepower is just a number, a fallout of an equation. While that is true, it's still nonsense. Torque and horsepower are intimately married; as long as the car is moving, you can't have one without the other.

The more cubes your engine has, the more torque it will inherently make, and
the more cylinder pressure it makes, also the more torque it will make, and
To a degree, stroke makes torque.
So in the case of the Mopar SBM, what can be better, than a very high pressure 360? Of the SBMs it has the most cubes, and the longest stroke, and high pressure is just a piston swap away.