I flopped str8, but turned paired

[recallme]

Villain is unknown, and i haven`s senn anything worth mentioning yet.

Game is Nl2k 6max stacks 2,6k

Villain limps Utg, Ihave QTcc and raise to 90, 4 folds and Villain calls.

Flop is Js9d8h
Villain donks 200, i raise to 520 and Villain calls

Turn is 9s Pot size: 1250
V checks

Having no read, what`s your line here?
i think b/f and b/c are both viable as well as check behind and call river or value bet