walbro 255

Quick question: Does the black hard plastic spacer on the walbro fuel pump get pushed into the black grommet (from the fuel filter) or just inline with it? ive searched around but cant find a picture thanks! - TF

i tried searching and couldnt find anything on stock fuel pumps and boost im planning on running less than 10psi on SDS.. I have vr4 injectors, vr4 fuel rail, FPR and safcII.. can i get away using my stock fuel pump... or do i need an aftermarket fuel pump.. was it walbro 255? any help is...