My throtle cable is loose from the bracket. there is a little slack right at the engine end of it. He thinks that its because the 2.5 bracket was used instead of the 3.0 bracket. He said I should get the right bracket or get an adjustable cable (he showed me one on a honda that was threaded to adjust).
If you are running a full 3L you really should be using a custom throttle bracket that is sized correctly to take up the slack. You don't need an adjustable cable. If the bracket is made correctly you won't ever need to adjust it. I'm sure there are others out there than can post pictures of their custom throttle body bracket.