I've almost got my dad's SSBC front disc brake conversion done. His car is an I6 and so this kit is designed for it. The directions say to hook up the power booster to a direct source of vacuum. His engine is totally original right down to the smog equipment. I have never worked on an I6 before so I'm not familiar with them at all. Does anyone know where I need to run the hose from the power booster to? Is it a place on the manifold or do I need to splice into some hoses already there? Thanks!