so you are maybe thinking that the computer still hasn't adjusted for the more airflow and that's what might be causing the vibration?
keep me updated on if you figure out what the vib is coming or just kinda of disappears
also are you runing a tunner?

Hey, yes I have put more miles on with the S&B. Just got back from a Dalllas to Houston and back trip. I do notice some gains. Mainly in acceleration off the start and a little improvement in MPG. Nothing to go crazy over but it definitely there. As far as the vibration. Still dont know what it is but it does seem to be getting better. It only happens under heavy acceleration and then goes away. I havent the slightest clue on the subject but I wondered if its a computer thing. Like it has to re adjust itself or something. Or possibly even a complete tuning(Edge etc.) I dont know.

have you put anymore miles on you truck with the S&B to notice any gains?
also did you figure out what the vibration was?