Good luck, that's awesome.
Just a little advice from me, a high school JV Wrs coach, dont go crazy with the whole lifting thing. Obviously in moderation getting stronger is a good thing, but if he's already 165, let him grow! A tall QB is much more in a position destined for success than a crazy strong one!
Take it however you would like, that's just my two cents as a friend who's seen the whole transition from kid to high school football player many times before. Like I said though, good luck, he should have some fun years ahead if he works hard!