I don’t mind the call if you can get his stack if you hit. (is his stack big enough to justify it?) So before you call the turn you have to decide if you are willing to take it to the felt with 3 to a flush on the board. If the answer is no then fold. If the answer is yes then call. If you hit straight or flush you have to get some money in there even OOP. Maybe pot it and see if he comes over the top.