What it looks like: RPM increase matches stroke length decrease.
4.625" / 4.125" = +12.1%
But it doesn't - RPM limit is inertial load on the rods, which only goes up inverse to the square root of the stroke change.
The product of shorter stroke X higher rpm at the same stress level is lower than the original.
1.12^.5 = +5.9%
The blower's pumping loss also goes up quickly.
Remember: boost pressure is bad, it's resistance to intake flow.

Could it work?
Sure, it's your (a lot of) money.