im trying to understand the vac line connections better for install on my 2011 evo x gsr... i understand the intake and wastegate vac line but what am i using for a boost source? is it the nipple on the uicp flange near the turbo? theres a vac line off oem bcs that t's off to the wastegate and uicp flange... anyone have pics of this installed?

thanks

 

It will run to 3 places:
1. turbo outlet elbow - boost source
2. wastegate actuator - boost signal
3. intake pipe - boost vent