Max Torque Big Block

What would you build for a max torque BB ?
My daughter bought a 77 MH with a 440 and I got thinking about it.
I am not doing anything at the moment but rather curious about It.

B or RB ? Stroked ? Heads and portwork ? Cam profile ? Headers or Manifolds ?

Lets here your recipe and reasoning.

I just finished a 496 for my '65 Coronet and it has 630 torque and 610 hp. It is a pump gas engine with Trick Flow heads, a small hyd roller cam, small headers, and a Holley Sniper EFI setup. I designed it to lug my 4000 lb Coronet around town while still having enough power to pull me down the 1/4 mile in low 11's.

If I was doing a motor home engine I'd shorten the cam up a little more and probably use a different cylinder head but I'd stick pretty close to this same design. Maybe shoot for 600+ torque and 500 hp.