ok im right in the middle of doing my intake job, and my book tells me to relive the fuel system pressure. i did step one discontect the battery, i did #21 lossen the fuel filler cap, but im stuck on 3 it says connect J34730-1 to fuel pressure connecting, wrap shop[ towel around fitting while connecting gage to avoid spilige,

but where is the fuel pressure connecting ????

In the fuel rail where the injectors are at there should be a small black plastic cap, slightly larger than a valve stem cap. That is the shrader valve for the fuel system. Wrap a towel around the valve and use a pointed object (like a small screwdriver) to push the shrader valve in and relieve the pressure. Make sure you are wearing eye protection though because there is a lot of pressure in there