Tex: agreed in general.
1. 2 categories might sell more blocks in the mopar world- thus my thinking on offering a race block as well or "off road use only " grin.
I too was thinking about the numbers game .
2. yes, 1000 hp factory motors or, highly tuned factory offerings are generally supercharged . The point I was "poorly" getting at is that they have blocks that will meet those numbers.

opinion: we don't see much in racing of "old" era steel: Flathead 6's and 8's etc, few races and they are mostly for those that have the cars.
We will be in the same shape before long if we cannot find reliable blocks or, so it seems to me.
Every fast dodge/chrysler/plymouth will be a modern hemi or an ls motor ( uhg, great platform but i dont put them in anything but chevrolets if i have any say in the decision making) .
I think affordable blocks that will reliably hold 800-1000 hp will make a lot of difference in preserving Mopars in racing/trailer queens /street cars.
soon, most will be some brand of EFI and some will want low profile blower/pro chargers etc.
Thats just where i personally "think" i see things going.