I'd have to think about that further. I suspect it would be true if you were feeding from both ends with two pumps and two 1/2" provision passages. Not sure. At present I am leaning away from dual feed as there is not a great way to get oil to it.
If you give me your email address in a private message, I can email you a PDFs showing how Sanborn front oils the block. The pictures are self explanatory.