OK, I'm going to ask a bit of a stupid question here, cause I have a manual for my '85 but not for my '87 and they are fairly different in this...between the secondary fuel filter housing and the pump, there are two lines:
- one that comes from the top of the pump, at the fuel pump housing it has and arrow out.
- the other comes from teh bottom part of the pump, it has an arrow in at the fuel pump housing.

Which one do I remove for the test?