Hello
Today im changing my coolant tank, and im almost finished, but when i was about to fasten the innlett pipe i discoverd a vaccum line i dont fint a place to put.
Can somebody here help me figure out where it should go?

 

My guess is probably the line off the plenum tk this check valve.

Here is a pic that may help

 

Thanks

 

Looks like it goes to your diverter valve. this would explain your boost issue..