Give me a 4bet size please

[duckyfuzz]

In this hand assume that I've already decided to 4bet but I'm wondering how much to make it. The villain and I have a lot of history, I play 18/15 with an ATSB of about 28%. Villain is very aggressive preflop and has repopped me numerous times during this session. I've folded to all his 3bets previous to this one. I have no information on his 5bet shoving range but I think it's safe to assume that if you make it >$80 you are committed to calling a shove.



$1/$2 No Limit Holdem
6 players
Converted at weaktight.com

Stacks:
UTG (<font color="#0000cc">$236.85</font>)
UTG+1 (<font color="#0000cc">$200.00</font>)
CO (<font color="#0000cc">$312.95</font>)
Hero (<font color="#0000cc">$260.00</font>)
SB (<font color="#0000cc">$229.50</font>)
BB (<font color="#0000cc">$200.00</font>)

Pre-flop: ($3, 6 players) Hero is BTN A[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/diamond.gif[/img]
<font color="#777777">3 folds</font>, <font color="#cc0000">Hero raises to $7</font>, SB calls $6, <font color="#cc0000">BB raises to $30</font>, <font color="#0000cc">Hero raises to what?</font>