Heat oven to 350℉/177℃.
Spray three 6-inch cake pans with baking spray. Set aside.
In a large bowl, whisk flour, sugars, baking powder, and salt together. Set aside.
In a medium bowl, whisk milk, eggs, oil, syrup, and vanilla.
Pour the wet ingredients over the dry ingredients.
Whisk until dry ingredients are incorporated.
Fold in pecans.
Divide evenly among prepared pans.
Bake for 23 minutes, or until cake tests done.