My take on it is.......
The Weiand TR is too small to support 541” at any kind of higher rpm, so I’m expecting to see a pretty big TQ number, then the HP will peak pretty early.
As a result of the early peak the HP number won’t be all that big.
I’m thinking the TQ/HP numbers will end up pretty lopsided, towards the TQ end of things.

To throw some numbers out there(which will be a total “WAG”), 660-670ft/lb, 550-560hp.

In order to know how the basic long block combo compares to “the rest of the world”, it would need to be tested with a “known quantity” induction on it.