Ok, my next fuel system I do IS going to cost me less to build this time around. I'm thinking about building one for my 91.5. Simple, no electric pump and regulator, basically just upgrade the supply line to 1/2"ID. 1/2" pickup and 1/2" all the way to the piston lift pump. I plan to find a shop locally that sells hydraulic hose this time, instead of high dollar Aeroquip pushlok hose, which I used last time on my 89. Hopefully it can be had for less than $4.xx a foot.
I'd like to eliminate/bypass the OEM filter setup completely. Run 3/8"ID fuel hose from the outlet of the lift pump to the inlet of the injection pump. I can handle all the plumbing, my question is: Does there have to be a filter after the mechanical lift pump?
Could I use a spin on filter between the tank and lift pump exclusively, with no filtering between lift pump and injection pump?