Is this push ok? 'Stars 10+1 hand

[mrh86]

I'm down to about 12 BB, and I have limited reads since I just moved to this table, but my opponent hasn't gotten out of line yet. I figure that he wouldn't call without at least a strong ace here.

PokerStars Game #2652889134: Tournament #12672605, Hold'em No Limit -
Level V (75/150) - 2005/09/24 - 20:58:19 (ET)
Table '12672605 11' Seat #5 is the button
Seat 1: TORKER1 (7100 in chips)
Seat 2: miss39red (4050 in chips)
Seat 3: KeithNov (7055 in chips)
Seat 4: jam04 (2735 in chips) is sitting out
Seat 5: HardBodyDan (1790 in chips)
Seat 6: flores90 (5455 in chips)
Seat 7: mrh86 (2020 in chips)
Seat 8: paulieg137 (5650 in chips)
Seat 9: coly3111 (4475 in chips)
flores90: posts small blind 75
mrh86: posts big blind 150
*** HOLE CARDS ***
Dealt to mrh86 [Js 2h]
paulieg137: folds
coly3111: folds
TORKER1: folds
miss39red: folds
KeithNov: folds
jam04: folds
HardBodyDan: folds
flores90: calls 75
mrh86: checks
*** FLOP *** [Ac 3h 7c]
flores90: checks
mrh86: bets 300
flores90: calls 300
*** TURN *** [Ac 3h 7c] [2d]
flores90: checks
mrh86: bets 1570 and is all-in
flores90: calls 1570
*** RIVER *** [Ac 3h 7c 2d] [Qh]