I'm no expert, but I am under the impression that the circle track guys dealing with say 358ci limits might have different bore/stroke combos for different tracks. Shorter stroke/bigger bore is more of a top end combo with the opposite combo being better for a torque (shorter) track.
Also, talked with a machinist/engine builder who put together a de-stroked motor for a land speed record holder dealing with a ci limit. He did a long-rod combo and destroked the motor to make a peaky, top-end motor. I don't recall the displacement goal, but it was small for a domestic V8, so he destroked an sbc...
[addsig]