best engine bay place for a fuel pressure gauge

Yeah, I'm visualizing a garden hose running and if the valve is the regulator ... and there is an anomily such as movement, is the water more affected further away from the valve? Is the water more stable closer to the valve? Dunno, could be....ill snoop around to find the article i was looking at because believe you/me....i want to run a short return line and keep stuff out of the engine bay.