In the photo you posted....The bleed screw for your filter base is on the secondary side of the base (right side of the photo). Above and behind the center bolt and to the right of the two bolts holding the base assembly to the intake manifold. It's basically a 3/8" NC bolt with a sealing washer. Loosen that plug/bolt (whatever you care to call it) and wait until fuel begins to run out the hole. You may want to remove it completely for faster results. Then tighten it back up and move on the the pump.