I guess I don't understand what SOL's are. Our district uses MAP for reading and math (it is computerized and tests above grade level) and then the CogAT rather than OLSAT. If his non-verbal OLSAT was 81 is that meeting their criteria above 90?

If he is being evaluated by the school you can ask if they are planning to do an intelligence test like the WISC V. Usually schools are required to assess cognitive ability if they are doing a comprehensive evaluation. That would also give them a better idea of what is going on with him in terms of needing gifted programming.