When i get my SFMU i am going to need a gague for the regulator to set the static pressure but will i need one of these.

http://store.summitracing.com/partdetail.asp?part=13460

So i can find out my pressure while boosting or not???

I know that I can do the math but using this gauge for inside the car will be more acurate than the math right??

That is the guage I am using now, it fits in with my other AM phantoms well..
However, there was a recall on some of them for the sending unit.. But they probibly arn't shipping the defective unit any longer... Hopefully.