GAI = 158, same as the RIAS FSIQ.
CPI = 114, for just under a 3 SD difference GAI > CPI. IOW, big, very big.

RIAS subtest scores are reported as T-scores, so that's a truly impressive verbal reasoning score (+3.5 SDs, analogous to scaled score 20 or 21 on the WISC).

WIAT-III Math Fluency subtests are probably a function of writing speed, in this case, and as reflective of the skills responsible for his Coding score as they are of his math fact knowledge. (Task is akin to a paper/pencil "math minute".)

The other achievement scores are generally reasonable for his GAI, likely with some effects from lack of systematic instruction for later skills in numerical operations.

...pronounced like the long vowel and first letter of the alphabet...