[GMC70c20]

I am building a lq9 for my truck (well lq4 with l92's) I am going to run a edlebrock vic jr. intake wilson carb spacer and either a quickfuel race-q or a holley hp. I need vacuum for the map sensor and the brake booster but there's only one port on the intake and none in the carb. I thought about just using a t and using the same vacuum source for both but I wasnt sure if the brake booster would discharge air back into the intake screwing up the map signal. How did you guys run vacuum for a map sensor and brake booster?