How much time would I get out of a 10lbs bottle on a 100hp shot, like 30 seconds? 45 seconds? 1 minute? I'm planning on keeping my car for quite a while and trying to compare the price of nitrous over a couple of years to a supercharger or turbocharger. Also on a side note, would 4.10 gears give me enough acceleration in 5th gear to spray nitrous?