Do you think your opponent is likely to call a flop bet with a hand like AJ on the flop or to call flop simply to make a bluff on the turn if bet to?
Probably not in which case he should have JJ/QQ/AA/5x/77 here and of those you're only beating QQ so good fold. I am sure he will have 88-TT sometimes aswell but unless you have a read hes an aggresive opponent you can't give much weighting to these hands.