In your Instant Pot, put in everything inside and fill with 8 cups of water
Close the lid, turn the knob to sealing, and set the pot to manual for 30 minutes. It will take 25-30 minutes to come up to pressure due to all the liquid.
After the Instant Pot has come up to pressure and is finished its cycle, let the pot natural pressure release for 15 minutes until quick releasing the rest of the pressure.
Place a fine wire mesh strainer over a large bowl or individual mason jars and using a ladle, transfer your stock over. Let cool before storing.