Everything we do to make these motors faster is some sort of a compromise. Put a big stroker in it with short rods and you get a bad rod angle. However, it makes more power than if you didn't. So it is a net gain.
My favorite illustration is the supercharger on a modern TF car. Bernsteins blower dyno showen that it took 3000 HP to turn it 11,000 RPM. But it made 6000. So there was a net gain of 3000.
We have done a few strokers in the last couple of years. With stock rods. When you do that with a spaqcer, you can run out of cam chain. There is no 96 link chain. One would have to resort to using a rivet link chain. Huge gamble on a high dollar motor.