Your bet looks soo much like a valuebet(to me) so I think as a bluff this would be pretty cool.
But when u hold AQ here just make it 450 or whatever is close to 50%-60% and pray he likes to call.
this i like ->
Poker Stars, $100 Buy-in (25/50 blinds) No Limit Hold'em Tournament, 9 Players
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#11791042
KellyHangOn! (BB): 3,035 (60.7 bb)
SteveB85 (UTG+1): 6,210 (124.2 bb)
(PSY)De_Ange (UTG+2): 3,650 (73 bb)
Slavik_Krs (MP1): 2,385 (47.7 bb)
Hero (MP2): 3,415 (68.3 bb)
jeanious (MP3): 2,306 (46.1 bb)
Ares0966 (CO): 2,058 (41.2 bb)
valitsius (BTN): 2,746 (54.9 bb)
pmahoney22 (SB): 4,195 (83.9 bb)
Preflop: Hero is MP2 with K

Q
SteveB85 folds,
(PSY)De_Ange raises to 125,
Slavik_Krs folds, Hero calls 125, 3 folds, pmahoney22 calls 100,
KellyHangOn! folds
Flop: (425) T

T

A
(3 players)
pmahoney22 checks, (PSY)De_Ange checks, Hero checks
Turn: (425) 5
(3 players)
pmahoney22 checks, (PSY)De_Ange checks,
Hero bets 250,
pmahoney22 folds, (PSY)De_Ange calls 250
River: (925) 2
(2 players)
(PSY)De_Ange checks,
Hero bets 2,000