You don't have anyone around Indi that flys airplanes and knows how to tune an engine? I would be willing to be there are hundreds of flyers there. Get on the AMA web site and find the closest one to you. An experienced guy could show you how to tune that engine in less than a minute and explain to you what to look for and how to do it. You have been screwing with it for what, a year? Yea, that makes a lot of sense. Look up a club and get help. That or you can spend another year going nowhere.