Not sure I can answer position. In HS he was TE/DE. At walkon tryouts he wasn't in peak shape and carrying extra weight, so they saw him as an athletic lineman who needed to add 20 lbs. Instead at 6'4" he's dropped from 270 to 262 despite improving his squat from 300 lbs to 420 lbs. So I think he'll get moved back to TE or DE.
What position does your son play?