Hey all, so I'm having a bit of trouble determining which line to tap into for the boost gauge for my 02 F150 HD. I have attached a picture of which I think is the one, but with that line which I circled in red. I noticed that it has a connection that runs all the way to the bottom vacuum port under the throttle body. So I'm thinking of just adding a "T" fitting in between that line circled in red and be good to go. Cause I keep reading that it's suppose to be capped off on it's own, yet mine isn't and has a continuous connection. Mind you this truck is completely stock, and just bought it yesterday. I appreciate anyone's feedback! Thanks!