fold IMO unless we've seen him overplay 1pr hands. His PF range is large for calling the 3bet however once he c/r's the flop his range is something like this: JJ+/AQ/KT/air

Reads would certainly be nice to narrow-down his PF range. If he's a nitty reg it's a fold, if he's a TAG it's closer and if he's LAGGY well then shit I wouldn't know what to do.