[ QUOTE ]
Ok if I raise it to 600, big stack calls and flop comes A85 rainbow. What's my line, assuming the big stack is loose but not a total maniac post flop.

[/ QUOTE ]
I would check/fold. The pot is big and a continuation bet would hurt your stack. Though if I have a read on him and I'm sure he wouldn't limp with an ace, I would try firing t800.