I am currently looking at designing my panel layout. My panel is existing (from a salvaged bolt), but I am going to change things around/add etc. I have a fuel pressure gauge in there already, my question is, what does the gauge do? (yeah yeah i know it monitors fuel pressure..), i would like a deeper understanding, ie. if high or low reading, what is happening? what is normal pressure? etc. The planned engine is an IO-360 angle valve.