[SNSSTR]

Ok guys, I am wanting to program a warning light on my aeroforce gauge to come on when the fuel pressure drops below a certain level. For instance, if I am WOT and the fuel pressure drops below where I am comfortable, I want to know so I can back off.

My problem is, that I can't seem to find a solid answer on what the minimum safe fuel pressure is. Does anyone know? I'm assuming this isn't really a variable answer and should be solid but maybe I'm wrong, so feel free to correct me.