only -10 vac

[95_Talon_nt]

Does anyone know where the stock hookup is for the factory boost gage on the intake manifold? I have 1 vac line that comes out of the firewall then is disconnected. I only have -10 vac and I can hear the hiss of the vac leak. But I cant seem to find the location. I sounds like its from behind the intake manifold. The line that comes out of the firewall is below the throttle cable hookup. If any one knows what the hell the line is and where it goes please let me know. Thanks - J

90 gs-t

 

[mitsuspeed]

http://www.sjdsm.com/images/90vac_diag.jpg