ok i have a thunder tiger engine thats kind of beat and i want to completley destroy it. I already have my new engine and i decided i want to have some fun before i break it in. I want to lean the engine out so i can see how fast the truck will go. What i need to know is what should i set the other needles to so they will match the hsn perfectly. I also need to know about the power/mixture ratio. Is it just leaner is more hp or it there a perfect point of lean to power ratio then it starts falling off. Please help.