install boost controller question
 

hello,
I wiil put a electric boost controller in my fd3s and I know I need connect a vacuum host with "T" connection to gauge .Due to I already have a (bar unit) boost gauge and a vacuum gauge already installed with a "T" connection.(I am stupid I don't know boost gauge and vacuum gauge is same before I buy)so the question is If i also put it on with "T" connection to both gauges will it affect the accurate or affect overboost my car ?due to a inexact boost rate ?please tell me

https://www.rx7club.com/3rd-gen-archives-73/my-boost-control-setup-perfect-10-8-10-pattern-178136/page3/



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