Here is a video of our Tejas 1560 with an Atkins Rotary SC 13b and a Scott 612 pump from Schlagel Marine & Motorsports.
https://youtu.be/PWCzLX3iP50
This was her first trip to the water.
I don't have any real numbers on RPM yet, but we had a top speed of 42 mph yesterday.
Boat weighs 1680 dry weight.
The boat in the foreground is our 1554 with a salvaged Yamaha FX Cruiser 1800 and a PPI Intake.