Standard line with bottom set facing raise on monotone board?

[Etats360]

Villain this hand is Colonel Mustard, who I had at 18/15/3 over 60 hands. I haven't seen him do anything notable in that sample size.

Full Tilt Poker, $2/$4 NL Hold'em Cash Game, 6 Players
LeggoPoker Hand History Converter

BTN: $238.95
SB: $394
BB: $724.60
Hero (UTG): $901.90
MP: $358
CO: $891.70

Pre-Flop: 7[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/club.gif[/img] dealt to Hero (UTG)
<font color="red">Hero raises to $14</font>, MP calls $14, CO calls $14, 3 folds

Flop: ($48) 7[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (3 Players)
<font color="red">Hero bets $36</font>, <font color="red">MP raises to $156</font>, CO folds, Hero....

What does he flat call an UTG raise in MP with that makes this raise here? How many naked A[img]/images/graemlins/spade.gif[/img]'s are in his range?