I know Factory Pro has gotten their best results with +4 degrees (according to the email they sent me when I inquired about their ignition advancers).Y2kYamR6 said:I have a 2000 R6 with full Yoshimura exhaust, Ivans carb kit and 40/35 mm Factory Pro valocity stacks. Where Is a good starting point to set my Rohm ingintion advance at?