https://www.rcnitrotalk.com/forum/showthread.php?t=45089
Go back and really read this thread. MW gave you a link to the gear chart, Jet told you about the numbers, and a couple of us made gear suggestions. You got and answer for every question you asked.
I know some of this is hard for you to understand but you were given the basics, now it's up to you what to do with them. Don't understand gearing??? Do a search on Google for gearing and learn how it works. Not many people on any site will be willing to type a fully detailed description about gearing, this will be true for a lot of subjects. We are very willing to give you the information you need to find your answer and throw in a few suggestions or tips when possible.
Good Luck