seen too many people spending more time and money fixing a problem the wrong way than if they would have fix the problem the right way to begin with. Over time it becomes a cluster....k. I would give SpecialtyZ a call, ask for their suggestions of the problem, better yet, schedule an appointment for them to look over it or a tune. I would get a transport to ship it there if I don't want to drive (Personally I would drive HWY 1) and let them do what needs to be done to get rid of the problem long term.