carbon build up?
how many miles on the car, do you have a Check engine light?
are you running high quality fuel?
had a Mini cooper s in the the shop the other day with similar issues. found she was using 87 octane. 91 is a minimum .
2014 black Mustang5.0 track package, Recaros.
Roush axle back with 4.5 tips /Boss diffuser
Barton twin post shifter bracket
Whiteline adjustable sway bar
Whiteline lower control arm relocation brackets
Whiteline adjustable lower control arms
Airlift Performance air bags
05 white Dodge 2500 Cummins sold and missed
So Far>> http://mustangforums.com/forum/2010-...ng-so-far.html