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Villain reg, 3b BB vs CO 10%

Button
SB
BB 196 BB
UTG
MP
Hero (CO) 140 BB

SB posts SB 0.5 BB, BB posts BB 1 BB
Pre Flop: (pot: 1.5 BB) Hero has Kc Kh
fold, fold, Hero raises to 2.5 BB, 2 folds, BB raises to 11 BB, Hero calls 8.5 BB
Flop : (22.5 BB, 2 players) 3h 3d 6s
BB bets 10 BB, Hero raises to 22 BB, BB calls 12 BB
Turn : (66.5 BB, 2 players) 9h
BB checks, Hero bets 31.5 BB, BB calls 31.5 BB
River : (129.5 BB, 2 players) As
BB checks, Hero bets 77.5 BB, BB calls 77.5 BB

During the game, it seemed to me that easy push river, and as shown by the analysis in CREV - very marginally (small changes in preflop 3b range or river calling range).
What is your opinion about this river play?

3b range AA-TT,AKs-A2s,KQs-KJs,QJs,AKo, 50% [77-66,KTs,QTs,JTs] like this
http://www.pokersnowie.com/pftapp/index.html#facing_raise