In a separate large bowl combine the cake flour, baking soda, baking powder, and salt. In another bowl with a pour spout combine the sour cream, whole milk, and vanilla extract.
Stir in dry cake flour mixture to the butter mixture and mix until just combined then, add half of the sour cream mixture and mix until just combined. Repeat process.
Bake the cake for 35 to 40 minutes, if you gently press the top it should spring back right away or if you insert a toothpick there should be no wet batter.