not so sure about this hand

[yvesaint]

PokerStars No-Limit Hold'em, $4 BB (5 handed) internettexasholdem.com

MP ($406.50)
Button ($121.60)
SB ($697.50)
BB ($573.60)
Hero ($1192.75)

Preflop: Hero is UTG with 8[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">Hero raises to $16</font>, <font color="#666666">3 folds</font>, <font color="#CC3333">BB raises to $28</font>, Hero calls $12.

Flop: ($58) 7[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $75</font>, Hero calls $75.

Turn: ($208) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $75</font>, Hero calls $75.

River: ($358) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks

alright im 99% sure he has an overpair, other 1% is reserved for the rare times he has AK

my 7, 8, and clubs are all good outs

how do i maximize value? he will probably go to the felt with even 88 here, so i didnt feel like raising flop/turn was gonna do me any good, especially with the great price he's offering me on the turn

i definitely think he will pay off, even if he has like TT and the Ac falls

he called a re-raise from button with AJs against my KK and went all-in on a 9TT flop with his draw and spiked an A

how much do i bet on river? he's got about pot left