The HF has too many fittings and valves that eventually leak and the hose is too fat. I eliminated the pressure release valve, modified the glow plug adapter to accept a 1/8 push to connect tube fitting. Used 1/8 nylon for the line and a JIC fitting at the gauge for pressure release.
Here's a video. Note how slow the starter sounds? That's been fixed.
http://www.youtube.com/watch?v=a5AB-Es6MZk