Pods cover air ports on the throats of CV, and other, carbs. So long as you make sure the inside of the pod doesn't cover any air ports, or so long as you don't have CV carbs because they suck big donkey balls, then pods are your better bet. Velocity stacks are for show bikes that don't get started, or for people who run pieces of screen down inside the throats so they will still filter some dirt out, but not be visible.