Help ID a833

Keep in mind that; the od will bring your cruising revs way down. (.73)
If you are doing this for fuel economy, 2 things come to mind; First is that as the Rs go down, with a big cam or rather with a late-closing intake valve,the engine will get less and less efficient This is cuz, as it runs slower, there is more time to pump fuel charge back up into the intake manifold. And the headers have plenty of time to pull fresh fuel charge straight across the top of the piston and out of the chamber. and finally, trying to give the engine the cruise-timing it craves, soon becomes impossible.
The result of all this is that with a hot-rod engine, a low cruise-rpm is not always gonna get you better fuel economy. I'll guess the switch point with most of us streeters is between 2200 and 2400. Somewhere between there is where the minimum rpm for fuel-economy is gonna be.
With 295/50-15s being about 27" in diameter, this would make 60=2400 with 3.23s, 65=2400 with 2.94s ... in direct fourth.
With 2.94s and a standard 2.66 low gear, you get a starter gear of 7.82, and your stroker is gonna complain about that.
But with the 3.09 low in the Commando box, you get 16% more TM; 3.09x2.94=9.08.. Ima thinking the stroker is still not gonna be a dump-it-and-go deal, it kindof depends on how much cranking cylinder pressure it makes.
But with a 3.09x3.23=9.98, now you got a good amount of TM to work with; and 65=2610. At this rpm, you can still not optimize the cruise timing without a computer, but at least the engine is cleaned up as good as it gets.

To run 65=2400 with the od box would require a rear gear of 4.10. and your starter would be 12.67,and that, friend, is a dump-it and go deal for just about any SBM. And with a stroker, you shouldn't have any trouble pulling that 54% 1-2 split.
Of course if you plan on cruising at a higher than 65mph roadspeed you would probably run less rear gear.
Point of reference;I ran 4.30s for one summer, but that 13.29 starter was way more than my 367needed. She ended up with 10.97 as perfect