3/6 preflop FPS, what is my best line?

[AAismyfriend]

Original raiser is a reg who just caught me floating him on an ace high flop about 10 mins before this happened. I 3 bet pre here like 99.99999% of the time, but decided to mix it up here since he thinks i'm floating a bunch. Squeezer is unknown but has TAG stats like 21/17 over 60 hands or so. Do I Shove? Call? 4bet to like $275? I think all are reasonable, and I'm likely to get looked up light with my crappy image and my strange line?

Full Tilt Poker No-Limit Hold'em, $6 BB (6 handed) Hand History converter Courtesy of PokerZion.com

CO ($112.50)
Hero ($645.90)
SB ($860.60)
BB ($1050.50)
UTG ($601.50)
MP ($761.10)

Preflop: Hero is Button with Q[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to $21</font>, <font color="#666666">1 fold</font>, Hero calls $21, <font color="#CC3333">SB raises to $90</font>, <font color="#666666">1 fold</font>, MP folds, <font color="#CC3333">Hero????