Yeah - you can leave all those valves - they won't do anything if they aren't hooked up.

 

The vapor seperator you can either remove the line, and plug it, or just replace the fuel filter with an aftermarket one that doesn't have the vapor line on it. It's probably supposed to T into the return line - since there's a possibility of liquid getting into it. But either way really - liquid gets into the bowl vent line on a hard turn as well, so I don't think it matters.

 

Your objective here is to simplify the system - just start pulling stuff off. But make sure you know what it's basic purpose is before you remove it. When your done, the only major vacuum lines you should have is the disty, the EGR, the brake booster, and a couple others that snake off into the firewall to operate the heater controls. The rest is garbage, and can be pulled off. The Hitachi will run just fine without any of the evap system.

 

GD

Yeh and btw I dont think think Ausie soobs where fitted with an egr valve cause only thing onthe back of the manifold is where that big line from the anti-backfire valve comes from.