Can anyone tell me how the factory supply line for the 85-87 throttle body injected 4.3L is routed? Drivers side or passenger? Where is the fuel filter located?

Not sure on a 5'th gen el camino but MAJORITY of vehicles I have serviced for EFI the fuel filter is located along the driver side near the gas tank fuel feed line. Not hard to miss along the frame rails.

The lines run on the passenger side. Fuel filter is on the frame rail about 2 ft. in front of the rear tire.