I’ve searched all around including my TAGUSA archive and cannot find anything on this engine, despite remembering it. Edit, I did find the homologation form linked in a different topic on the forums:
Vortex Super Rok Homologation pic_13_01.pdf (792.8 KB)
I can only give some generic info unfortunately. Do you know the rod length and stroke, from that you can at least calculate the static timing in degrees to get you started on ignition advance…
36 does sound pretty large, especially for a single gear kart, but the powervalve will help make up for the lack of bottom end. That said, the homolgation does show a VHSH30
If you search the forums for Super Rok you should find some more topics on this.