I have a Defi D boost gauge installed in my car already and have a question about installing my Blitz SBC id3 boost controller. For the boost gauge, I tee'd into the vacuum line from the fuel pressure regulator and ran it into the car through the firewall grommet on the passenger side to the right of the glove box. Can I tee into that same line inside the car for the new boost controller? If not, what should I use for a boost source for the ebc?

Thanks.