You can hear clutch hiss most of the time at idle. The build date is on the driver door frame. If you are having 2nd gear issues its time for the TSB. Otherwise Ford say a little clutch noise is normal.
amen to that lol, he said he didnt want to do anything to it for a while, but before this he had an 03 cobra he bought in 05 with 9,000 miles on it, and he said the same thing, and within a few weeks he had a 2.6 kb on it, and not long after that it was almost fully built, so i expect this one not to stay stock for long