You'll definitely get more flow. In reality, the flow right now is limited to your reeds and your ports. Open your reeds up, with the VForce, then you'll be good to go till your ready for porting.
It's not a waste to put VForce on stock carbs w/o porting, however a cheaper set of reeds like a ported stock cage and a set of boyesens will probably give you about as much flow, because of the stock porting. Should you decide you want portwork, then the VForce will outflow the stock ported cage and aftmkt reeds. So, what I'm saying is, with stock porting you have several options that will benefit you about the same, but you can go much farther with the VForce reeds. I wouldn't run anything but the VForce reeds, personally.
Scott