In a large bowl, whisk together the corn syrup, sugar, melted butter, eggs, vanilla, and salt until the mixture looks smooth and well combined. I like to whisk by hand here instead of using a mixer, since overbeating can trap too much air and cause cracks on top later.
Sprinkle the chocolate chips evenly across the bottom of the unbaked crust, then scatter the pecans on top of that layer. Pour the prepared filling slowly over the pecans and chocolate so everything settles into place. This layering trick keeps the chocolate from sinking all the way to the bottom.
Place the pie on the center rack of your preheated 350°F oven and bake for 50 to 55 minutes. Around the 30-minute mark, loosely tent the edges with aluminum foil so the crust doesn't darken too quickly. You'll know it's ready when the center is just slightly jiggly but no longer liquid.
Transfer the pie to a wire rack and let it cool completely, which usually takes about 2 hours. I know it's tempting to slice into it right away, but the filling needs this time to firm up properly. Skipping this step is the main reason people end up with a runny slice.