Yes, 30% over crank speed. Of course the pulley ratio to get that 30% will change with RPM.
I may call Stewart Components tomorrow and ask if they know (I’m sure they know at least about their own pumps) how fast you can drive the pump before it cavitates or any other bad thing happens.
If you know that and your max RPM you can adjust the pulley ratio to keep from running the pump into issues.