Set up grill for dual zone cooking with all the coals on one side. Aim for a target temperature of 375-400 degrees F. In a large bowl toss wings with avocado oil, kosher salt and pepper.
Place wings on the grill opposite the coals and cook for 30-40 minutes. Spray with cooking oil then cook for another 10-15 minutes until wings reach an internal temp of around 190 degrees F.
To crisp up the wings even more place then on the hot side of the grill for 30-45 seconds just long enough to crisp the skin before removing from the heat.