I've seen A LOT of posts about making HP with a 318-So why is it so ???

If you need more than this let me know:

446ci
9.5cr
Comp 280 magnum cam
(280/280, 230/230, .480/.480, 110lsa, in at 106)
Stock rockers
Factory style 6bbl carbs & manifold
1-7/8” headers
346 heads with blended bowls and
2.08/1.74 valve sizes

Flow:
Lift—— in/ex
.100— 68/57
.200—141/106
.300—204/141
.400—238/166
.500—249/178
.600—255/186

I’m mostly curious as to what it predicts the TQ to be......and where.