I can't figure out how to adjust Comptech's fuel pressure regulator. These are the directions I was given by someone else.

You need to loosen the nut with a box wrench then turn the adjustment with an Allen wrench while you have the box wrench on the nut..... After you adjust it, tighten the nut back down while holding the Allen wrench in place.

Can someone help with their expertise. And if possible could you mark up the photo below so I can get a visual of the nuts and bolts that needs to be adjusted.

 

its the gold bolt in the side. loosen the gold nut at the bottom then use a allen wrench to adjust the pressure.

 

are you sure? i'm pretty sure it's the black nut on the left that needs to be loosened and then adjust the threaded piece in the center of that.

 

Yeah i just found out that it is the black nut on the left hand side.