How does cid make power?

I left my original question kind of vague wanted to see where people would take it.
I mainly said what it wasn't about. But being vague I'm getting mainly what it wasn't suppose to be about :) it's inspired by another post where a guy ask how much hp will he gain stroking his 360 with same top end.
I seen that thread and did not comment on it (?) because it was going all over the place.
It’s a shame I’m not a clairvoyant dyno master mind.
Straight OOTB, if the bore want increased, (pay attention here!) *I’d Guess* a small amount of HP but a lot more torque. When I say small, build dependent, the top end parts and camshaft play a huge roll and I can not predict the amount of HP gain.

If all that was swapped around was the B&S, what are the other components & how well do they respond to the B&S change. TF heads will respond much better than OE 1/88/1.60 stock heads and Victors will respond much better Han the TF’s.

This is still ignoring the camshaft and rockers, intake and exhaust from tip to tip.

It’s nearly impossible to find such tests on video and print. But the ones videoed and in print always showed a gain.