My Trick Flow h/c/i was finished up being installed yesterday. When It gets up to around 2k rpms, it starts missing and jolting and won't rev any higher. When it's cold, it does it right when I start moving. The guy that helped me do the work, said it was the C&L mass air meter most likely that was causing it. I swapped the stocker back in today and nothing changed, same problem. Anyone have any ideas what it could be?