Preheat oven to 375 degrees F. Soak pecans in the bourbon. Set aside.
In a mixing bowl, beat melted butter, sugar, and eggs until fluffy. Blend in syrup, vanilla, and salt. Stir in chocolate chips until evenly distributed. Pour mixture into piecrust. Sprinkle bourbon-soaked pecans over top of filling.
Bake for 45 to 55 minutes. Check at 45 minutes, it may brown quickly