I've searched and read thru various posts and comments. Regarding a vacuum source for my MAP sensor. My question is:

If i remove these plugs (pics)and install a port will that work for a vacuum source?

Was thinking useing the one by the egr for the bov. And the exsisting port by the fuel rail for the MAP

If you have the manifold off already just tap and die here. See pic.

Definitely trying to NOT pull the intake mani

Did you end up using this method?

I ended up needing 5 sources.

Boost gauge
AFPR
MAP
Crankcase can’t
BOV

I used the center stock port on the IM for the CC vent, left port for the MAP, right port for the APFR.

I then removed the 2 plugs on Either side of the stock IM, added hose barbs, driver side port for the boost gauge. Passenger side port for the Bov.

All worked well.

I pulled the hose barb for the brake booster on the intake manifold. Got a striaght thru adapter with the same threads as the barb that had a side port with the thread size for the extra hose for the MAP & estintially tee'd off here.

My oldest son runs a "vacuum tree". It is aluminum and has 1 inlet and, I think, 6 outlets. You put the size of barb on the tree that you need and run your hoses. Looks good too. My E3 intake had already been tapped in 2 extra places, so I didn't need one like he has.

Freddyk79 said:

I ended up needing 5 sources.

Boost gauge
AFPR
MAP
Crankcase can’t
BOV

I used the center stock port on the IM for the CC vent, left port for the MAP, right port for the APFR.

I then removed the 2 plugs on Either side of the stock IM, added hose barbs, driver side port for the boost gauge. Passenger side port for the Bov.

All worked well.

Click to expand...

My stock 1g manifold has the tapped spots with 1/4 BSPT.
So I'm going to try this route.
I made a thread before I found this one.
(maybe they can be merged)
https://www.dsmtuners.com/threads/gm-style-map.517870/#post-153690976
I really don't want to run the MAP on tee.
ECMlink says it isn't the best way to go.
https://www.ecmtuning.com/wiki/sdhose