Board: As Ac 7h Ts 8d
Dead:

equity win tie pots won pots tied
Hand 0: 40.411% 27.40% 13.01% 20 9.50 { Ad5d }
Hand 1: 59.589% 46.58% 13.01% 34 9.50 { JJ-66, A2s+, 87s, A2o+ }


Seems to me he is leading out on the turn to protect against a flush or bet his FD.. so I stuck 78s in there. Does this range seem reasonable?