The 3.0 camo track is actually 2.92-2.95 clip to clip..with 2.86 travers that means theres is only a .045-050" error coming/going...not a big deal IMHO...
as for the 860R the 480's are safe/safe...470's after breakin...for a couple more HP have Lynn bump timing 1 degree...BJ
as for the 860R the 480's are safe/safe...470's after breakin...for a couple more HP have Lynn bump timing 1 degree...BJ