oil pressure port

[extreme gmc]

is there an oil pressure port on the 4/3? i need to know so that i can add a temp gauge. the other thing i was thinkin is if the only one is in use by the pressure sending unit i would add a t fitting there and run the temp off of one side and the pressure off of the other. would this be ok? would i still get an accurate reading from both?

[DROPPEDGMC]

there is an oil presure port on all blocks. look towards the back of the intake, or some times down below on the side of the block on the drivers side