Tough river decision

[ahnuld]

400nl 6max on party. I think I have a TAG image for a change. PRF seems solid enough. Other guy is a bit loose but nothing big. Villan makes it 12 UTG, loosey calls, I call on button with 77. 3 of us take the flop. Effective stacks about 600.

Flop comes K [img]/images/graemlins/diamond.gif[/img] J [img]/images/graemlins/diamond.gif[/img] J [img]/images/graemlins/heart.gif[/img]. Checked to me and I check behind like a good boy. Turn is 7 [img]/images/graemlins/heart.gif[/img] PRF bets 20 into 40. Loosey min raises to 40. I make it 100 even. Maybe I should bet more but they drawing slim and I want action from a AJ type hand or a flush. PRF is the only caller. 280 in pot.

River is an A (offsuit?). Villan leads for 175. Call raise or fold?