Got a plastic breather that comes from the plenum by the back of the engine, runs along the plenum, then goes into a samco silicone hose, but it is routed to nowhere!? Where should the other end of that hose attach?

 

if its coming off of the kidney box for the crank case breather then its meant to go to your air filter box, ive just got a small breather filter fitted to mine though

 

Yeah looks like it is, excellent, thank you.