fuel trouble

Could a fuel filter cause poor gas miles.I have the filter that goes to the carb from the pump and their is a return filter but on the return filter which is near all those emmision lines used to be,so with the arrow on the return filter which fuel line hooks which way

What's a gas mile?

Please keep the conversation here so others can chime in. I know from your PM you meant MPG.

I haven't seen a bad fuel filter cause poor gas mileage (mpg) but it can cause a truck to run poorly or not at all.

Has the gas mileage always been poor? If you haven't done so already I would do a tune up. Replace the fuel and air filters. Replace the plugs and wires and I'm sure others will chime in.

7-10mpg is pretty bad, I would even start checking around the tank to make sure you aren't leaking gas and even put a lock on your gas cap to make sure someone isn't stealing your gas.