Do 180's Actually Increase FPS?

I'm thinking about swapping my fangs revamped Motors for a set of 180 neo hellcats. I know the hellcats have more torque then the fangs, but the fangs spin faster at 37,000 versus hellcats at 36,600. So, would the fangs shoot higher FPS numbers or does the torque of the hellcats actually transfer to hire FPS numbers??
I may go after the hellcats because of the spin up time alone, but I'm still unsure which will actually shoot harder. (depending on the flywheels of course).

Thanks!