Vacuum brake swap question.

[87BuickMan]

How did you guys tap into the vac block for the extra port? did you use a special connector that has a nut on the inside and outside or something similar? On mine the plastic vac box is so thin that I have tons of sylicone around the extra port I made to keep it from leaking.
Is there a "special" fitting I can buy and use or will I have to go to a billet block or something similar?

 

[TR Custom Parts]

https://www.casperselectronics.com/...creen=PROD&Product_Code=102090&Category_Code=

This is what you want to use.

 

[tumarido]

alt Vac source

Or tap in to the PCV line with a 3/8 "T" barb fitting
As for your stock Vac-bloc sounds like is be-on repair now.