I did a search, and 67 topics came up. but no pics. I am using the boost gauge in my blitz timer. The hose is smaller than any of the vacuum lines that I see in my manifold! How did you guys tap and do I need a bigger hose? The hose comes from the back of the timer and is the size of the smaller line that is in the back of manifold by the three-way tee like this: \|/
This is the smaller one, the one on the left of the tee

what i did was get about a one foot section of regular black vacum hose and attach it to the right spike (driver side) of the thing on the back on the intake mani. Then i put a a brass fittin from Home Depot on the end on the black hose and screwed the boost gauge hose on to it with the hardware that came with the gauge.
make sure u use hose clamps on the black vaccum hose
here is the pic of the brass fittin i used

later
"Z"

i don't have an EGR system in my car so thats why i used that spike on the intake mani
if you want you could just cut the EGR vaccum line put a tee where u cut it.
later
"Z"

thanks, I think I am starting to get it...so the EGR one is the smaller line near te back right? Thank