Spots we rarely think about

[Isura]

This is HU, but if you wish pretend it is 6-max against a very loose opponent. Villain is loose passive, will sometimes call 2 barrels with A-high, you know the type. $200 stacks.

You open to 6 on button, he calls.

Flop is 5h 7h 8s

and you have black 22. How do you proceed?