Where is the best spot on the manifold to get vacuum for a brake booster?

[bigmanjbmopar]

My eddy RPM air gap has a port but says it's for an EGR that should have full vac right?

 

[snakeoil24]

Any where below throttle plates

 

[bigmanjbmopar]

This is basicly the only spot I have available.

 

[5.7 hemi]

Then use that.

 

[brasil]

this is the correct port