Not exactly......... and without testing you wouldn’t know for sure.
And since the intent is to run it with ex manifolds, it would need to be tested that way.

What I’m saying is........ a shorter duration cam “might” make a higher peak tq number.
“If” that happened, and the fall off after peak tq was the same drop in tq/rpm as the current cam, for enough rpm after peaking........ it could end up making more hp.
But.... We’re not talking big changes here.
And I’m not really advocating you change anything........ I’m more just “thinking out loud”.
Again, the test would only be valid if you used the ex manifolds.
Trying to do R&D for an ex manifold combo........ by testing with headers...... is pointless.