Brake Booster Question

I replaced my brake booster and now the brakes are super sensitive. The truck had sat for 9 years and the disks were rusty and the master cylinder and booster were both frozen. The disks have polished up ok, but the brakes are hard to deal with. Question - are valves available to modulate the vacuum to the booster? Should I just replace the disks and calipers?
Thanks a bunch.
Andy

Andy - Glad you joined, but you probably missed the email that asked you to go to the New Members Start Here folder, read the guidelines, and then post an introduction.

We ask that of everyone since we hold everyone to the guidelines.  So it is important that you have a chance to read them, and if you go to the NMSH folder you'll see them.

So before we answer your question can you assure me that you've read the guidelines?