ok maybe this should be in HA as far as bet sizing and calling turn as i know he hit his flush....only hand he could possibly have

PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (5 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP (t1440)
Hero (t1490)
SB (t1440)
BB (t3130)
UTG (t1500)

Preflop: Hero is Button with 7, A.
1 fold, MP calls t20, Hero calls t20, SB completes, BB checks.

Flop: (t80) A, A, 3 (4 players)
SB checks, BB checks, MP bets t40, Hero raises to t160, SB folds, BB folds, MP calls t120.

Turn: (t400) 4 (2 players)
MP bets t160, Hero calls t160.

River: (t720) 4 (2 players)
MP bets t80, Hero raises to t400, MP calls t320.

Final Pot: t1520

Results in white below:
MP has Kc 5c (flush, ace high).
Hero has 7d Ad (full house, aces full of fours).
Outcome: Hero wins t1520.

if you Knew he hit his flush you are drawing to 1 ace 3 threes and 3 fours.....giving you 7 outs......2.5:1 pot odds and 6.6:1 to hit your FH........=(