72 Imperial vacuum lines

[ChryslerCaptain]

I have a question for all you carb gurus out there. I’m just getting ready to put my 440 back in my 72 imperial that I’m restoring the only thing I changed with the engine performance wise is I upgraded to a Holley 4160 750DP and there’s only 2 vacuum ports on my carb which obviously won’t be enough what should I do?

 

[CBODY67]

Many B/RB engines had a vacuum "tree" in the #5 cylinder intake port, maybe #7 instead, from which all of the vac was sourced from, except ignition vac advance and PCV. Cruise control, hvac items, etc. IF you can't find genuine Chrysler items, then GM/Chevy used some very similar things in the 1970s.

Is there a hole in the back of the throttle plate casting to run power brakes from?

CBODY67