When converting an N/A fuel injected engine to turbo do I use the standard fuel pressure regulator (I'm not sure if the FPR raises or lowers flow under vacuum etc.)? If so do I take a vacuum feed from before or after the throttle body?

Also what would I do with the standard oil breather system? I gets a feed from the plenum into a breather box then comes back into the throttle body just before the butterfly, should I ditch the standard box and run the system: plenum --> oil catch tank --> breather/filter to atmosphere?


If it helps he engine is an omega v6 engine and I'm using aftermarket management with an idle control valve

Thanks