just went out and looked at mine...
i screwed my sender into the front of my intake,i think i took out the factory idiot light sender and used it's spot.it's just below where your radiator hose clamps to your water neck,just to the left of your cam sensor,pointing towards the grille.
whatever you do don't take out the coolant temp sensor,it's smaller and farther back on the intake,and points straight up.
hope this helps.
later,sean