im installing a t3-t4 turbo on my b18b and i was wondering were to route the vacuum lines ..i kno the waste gate hose needs to be routed to a boost source but were is that at? on the intercooler or the turbo it self and were do i put the manual boost controller?

 

just tee it off from any vacuum source or make(purchase) your own vacuum plenum.

 

the boost controller or waste gate?

 

^^^^

 

Vacum line can go from the wastegate to your intake, or if you have the port on your turbo in can go........If you have a MBC that would go inbetween that line and the soure of vacum