Building a manual boost controler

[Andrew7dg]

Ok I built one finaly I am trying to figure out where to mount it in the engine bay. I will get a picture of it soon. The one problem is that once in a while it will have a boost spike. I have it set at 10psi but every once in a while it creeps up to 12 then back down, that is what is called a boost spike right? How do i fix this?

I think though I need to find a different spring though. This one is kind of touchy.

Anyway it is a lot cheeper then buying one.

BTW everything is stock on the car (for now anyway) 10 psi is a safe setting on it right now right?