Where do I measure the fuel pressure?

Hey all,

I think my fuel pump is failing.. The engine seem not to get adequate fuel. It
seems to chock. After driving for a while like these it becomes ok, as if
something is clogged, but than works well. Also, the van doesn't seem to
have a lot of power all the time.

I bought a pressure gauge kit. Where is the fuel pump pressure connector
on this 2002 dodge ram 1500 van?

Best,
Avishai