walbro fuel pump

[93blackta]

i have a walbro fuel pump and i get a fuel pressure drop when i turn off the ignition. is this normal with the walbro fuel pump or do i have a leak somewhere. i've read where someone said the walbro does'nt have some kind of valve that the stock pump has that holds the fuel in the lines. is this true?

[MN6WS6]

Mine does that too. Seems to be normal.