[HustlerLA]

I dont think a call is best. You may get a scare card on the river to kill action. I dont think he is bluffing. You said he is a standard palyer and most dont make really large bluffs on the board texture in a big pot OOP. He is more likely over-valuing his hand and your action will be killed with a 2-pair counterfieting card, another spade (if he doesnt have one), and a str8 completing card. Make the river unfoldable IMO