Hey guys I got my stang a couple of weeks ago after i ordered it in late july. It has the manual and brembos. I love it but noticed right away it idles a little rough. I can see it on the tach also it will go from 850 to 950. I went to the dealer and they let me start another 5.0 on the lot and it did the same thing. i always thought v8s ran smooth on idle? Is there a good reason these new 302 do this or do i need to take it to service. A/C is also off during idle.