I cringe to even ask this question...

If I wanted to Check fuel pressure on a Mercury efi, would I check it at the valve right above the vst? Not sure of its name, but it looks like the end of a valve stem on a tire. Sorry for the stupid question... Thanks in advance

schrader(sp) valve, fuel pressure valve... pre '96 (external pump) 34 ta 39lbs... '96 up 34 ta 36lbs..