IMHO, It all depends on the filter. Filters made for fuel injection are designed to withstand the pressure needed for proper operation of the injectors and are always after the pump. If you are using a see thru filter like I usually run, I figure if it were to ever spring a leak, it would be better before the pump than after. ----- Original Message ----- From: "singlecabboy" <sealingwaxred@xxxxxxxxxxxxx> To: "tcb" <tcb@xxxxxxxxxxxxx> Sent: Monday, May 22, 2006 7:05 PM Subject: [tcb] Fuel filter placement? I run a rotory fuel pump .does it make any difference if you place the fuel filter between the gas tank and pump or pump and motor?