2009 Cts-v. Every so often the vehicle hits the rev limiter on the 1-2 and 3-4 shifts. I really noticed the issue after the cam install but it doesn't happen all the time. Should I start with using the trans. tune from the 2010ctsvmod files?
Mods are: Ls9 cam, Id850 inj.,2.5 upper, Airaid, 3" catback
Thanks

