Part of this water injection set up, requires a boost pressure sensor to be installed... I finally found one; and its an adjustable dial looking deal with a sensor piece.

My guess is that I put this into the engine bay somewhere, where there is a vacuum source, or drill for a new one?

Anyone know if I could just T off of the FPR vacuum line like I did for my BOV again to tap for this? I don't really want to drill into my intake manifold

 

I dont see why that wouldnt work.
how about a link for the sensor if you have one?
I wanna see what your up to

 

erm I'll have to take a pic of it, I went into nappa and told them what I needed and this is what I got.

And as always, up to no good!

 

Hobbs makes an adjustable pressure switch.
Probably what you got.
Planning to use one as a safety/ignition cut device.