The reason so many EM motors use long stroke combos is simple, piston speed is a product of stroke regardless of bore and a long stroke gives the motor momentum as the dyno brake is applied, if you can't get out of the basement you can't get to the ceiling.

One thing I've noticed over the years is that the 3.58" to 3.79" strokes seem to be the sweet spot for small block mopars, in terms of efficiency. 4" and longer stokes make mad torque and very good power, but if you compare the hp/cube "efficiency" for a given head/cam combination, the sweet spot strokes usually generate better average torque and HP per cube of displacement.

To some extent, we will 'have what we have' to work with and with that said....I think in the 355"-370"-ish range, the LS, conventional SBC and Ford combos don't necessarily have a clear cut advantage within the 3500-7500 rpm range. It's a port cross sectional range where the LS and Cleveland/Windsor Hybrid ford combos won't necessarily be dominant over a well-prepped well-thought-out Mopar combo.