I had a centerforce cluth installed with it, nevermind the first comment on the torque loss.
When I changed from a FILTHY S&B to a AFE all the torque came back then SOME!! nevermind I was just to impatient.

The filter was awful... I love it now (fidanza/centerforce)

thanks everybody for chiming in...
and yes by the time I'm noticing my revs I'm already past 4 grand..

Thanks
Eric