upside down? vacuum comes down and fuel return is up.

pressure regulator is Bosch 0280160202 (3 bar fuel pressure regulator with vacuum connection. 2 pcs pressure connection and one connection for return. Fuel connections 8 mm)


But If Im understand well I must connect guage between pressure regulator and fuel rail.

am I wrong?

PS. sapphire cosworth 4x4 green head