This question gose out to those who have the Inferno GT and GT2. The first step states to unscrew the High-end needle 3 turn from closed position. I know there is probably no hidden meaning to it. but I'm not sure if you have to tighten to the closed position first, or if it has been factory set to closed closed position. If you have to tighten it closed, by how much?

Sorry it's my first nitro car.