Before this gets out of hand let me say that we have been very satisfied with the C&H ignition and the Syncro Spark chip that Ed Vollmer produces. I have done some testing of the ignition and its processor. I have found that on our twins they would benifit from a different amount of timing at idle. Ed was kind enough to furnish me with some new chips with programs I requested. I will test them soon and let you know if they work as we expect them to. This is to assure the new engine idles as smooth as any other brand engine.