I just got a boost controller (M's fuzzy logic boost controller) and i need help hooking it up, i have a external wastegate which has too vac line fittings. The problem i'm having is what line goes to the the boost controller. Where does the top line go and where does bottom line go. I have searched can not find the answer i need please help.

 

top goes with boost controller side goes to a vacuum source

 

i was wondering the same ?, thanks