Value Raise this River? Commerce 10/20

[lapoker17]

10/20 live in LA. I have $3700, villain covers. Villain is aggro and kind of tricky, a pro, and generally a dick. Table is 6 handed. We used to play together some when I was much laggier, but I don't know that he remembers, so his view of me is who knows.

I open A [img]/images/graemlins/diamond.gif[/img] 9 [img]/images/graemlins/diamond.gif[/img] UTG for $100. Folded to villain in BB who calls.

(Pot $210)

Dream flop of 9 [img]/images/graemlins/club.gif[/img] 4 [img]/images/graemlins/diamond.gif[/img] 3 [img]/images/graemlins/diamond.gif[/img]
He checks, I bet $140, thinking he may come over the top with a really wide range, but he does not, just calls.

(Pot $490)

Turn 7 [img]/images/graemlins/spade.gif[/img] he checks and I check (we can argue about the turn check, as I don't know that I like it much now).

River A [img]/images/graemlins/spade.gif[/img]

He leads really aggressively - like an over the top strong means weak thing - for $400.

Who raises?