I just got a greddy 15g kit from my friend and I am new to the turbo scene. I have two vacuum ports on the bov, one on the waste gate, and one on the turbo below where the filter goes. The one that is below the filter is capped off and Im not sure why. I also have a mbc with two vacuum lines coming off of it and a T on one of them. Does the line from my boost gauge go to one of those? Here are some pictures of what Im talking about. Im a noob when it comes to turbos so any help would be great. Thanks

 

The one with the T i would run to the blowoff and the boost gauge, and the other one to your wastegate. The hole in your turbo is on the compresser side, alot of people just block them off but some get there boost reading for the gauge from there.

 

well I decided not to use the boost controller cuz I dont need to turn the boost up. Should I make the lines go from the bov to the ports on the throttle body?