Ok from what I have heard the easiest way to tap into boost pressure (in my case for H20/alcohol injection) is to tap into it at the BPV (the smallest tube right?). I've heard talk that you can just get a t piece from bunnings for an irrigation system etc. and a bit of piping that's the same diameter and away you go.
I was curious if that's really how I should go or if there is a better solution about. I'm also not sure how many mm the tubing and t piece should be. I've had this system sitting in a box way too long and really need to get it in the car!