You need to make sure your balancing is correct. I would get a neutral balanced engine personally. (I did )

But what they've told you is correct.

Google this topic btw, there is a good size thread with alot of info on it. I cant remember which forum its on though ...

If you have any question Ill be glad to help the best I can, but please research it before you ask.

 

So I understand, replacing the Camshaft Position sensor, it is the entire sensor out of the 3.8 and the electronic sensor cap that goes on top?

 

Let me restate that question. I am using the 3.8 mustang cam synchronizer and the 3.8 mustang camshaft position sensor (black cap on top, replacing the F-150 synchronizer and position sensor. Thanks for the help.