Perhaps I could get some guidance from you mechanically inclined types? I installed a set of dyno power fishtail mufflers on a set of Deuce headpipes in place of a Thunderheader. Running a forcewinder filter element and haven't changed jets. The muffler for the rear cyclinder is starting to get a slight amber tint. Not sure what to do about it. Does that mean I'm running lean? I would think that going from a T-header to baffled slip-ons would actually richen up my mix, but what do I know? Hence this post.