A VECI of 145+ is listed as meeting minimum score guidelines: https://www.davidsongifted.org/Young-Scholars/Application-Process/Testing-Requirements. And correct me if I'm wrong, aeh (and others!), but isn't VECI derived in part from the subtests used for VCI?

Your son's VCI is in DYS range. If DYS is a goal and it would strengthen his application, could you go back to your examiner and ask if s/he administered the subtests necessary to calculate VECI, and if not, whether there's still an opportunity to do so?