I reaize a 3 bet or fold may have been more optimal pre but as played do you call or fold?

Full Tilt Poker $10,000 Guarantee (Early Antes) No Limit Hold'em Tournament – t10/t20 Blinds + t3 – 8 players
Hand Conversion courtesy of Tournament Poker Edge

slowTAOn (UTG+1): BB = 148.9, t2978
nmop441 (MP1): BB = 144.9, t2898
Gelukszoeker (MP2): BB = 144.4, t2888
karthurasso (CO): BB = 150.0, t3000
naurisj (BTN): BB = 150.6, t3012
DiceboyT (SB): BB = 176.7, t3533
qwertyak (BB): BB = 144.4, t2888
barnzer1910 (UTG): BB = 147.4, t2948

Pre Flop: (t54) slowTAOn is UTG+1 with K Q
barnzer1910 raises to t60, slowTAOn calls t60, nmop441 calls t60, 2 folds, naurisj calls t60, DiceboyT calls t50, 1 fold

Flop: (t344) 5 Q 6 (5 players)
DiceboyT checks, barnzer1910 checks, slowTAOn bets t165, nmop441 folds, naurisj calls t165, DiceboyT folds, barnzer1910 calls t165

Turn: (t839) K (3 players)
barnzer1910 checks, slowTAOn bets t425, naurisj calls t425, barnzer1910 calls t425

River: (t2114) A (3 players)
barnzer1910 bets t2295 all in