jb, I would not have expected you to be 14. Most 14 year olds don't have the patients to research somthing like this. But anyways. I have read through a few threads. One being about 14 pages long and then also through this and a few otheres. Are there any ways to change the timing profiles without getting into the chrome on the sleave? I dont have access to diamond files at the moment. I am working on modding a boat engine, if anyone has ever done any of this. It is an aquacraft .15, from a nitro hammer.