You mean static advance then? I dont have a number for you but will say that I think thats going to be hard for anyone to give you a solid number. It will depend on your compression, squish (area and shape), fuel, pipe etc etc.
Plus on such a short run you could maybe get even MORE aggressive. Test 0.1mm increments at a sprint track for a single lap (or two) and see how it goes. Even include your launch. Thats the only way to really find out I think. Start with wherever a SKUSA timing plate fixes it and advance from there.