Originally Posted by PDiggityDogg
You dont need to tap for oil, and you dont need a sandwich adapter for just pressure.

OR
http://www.theoldone.com/articles/oilpressure/
But yes, if you cant even find your intake manifold, you have no reason messing around under there.
You will need to tap for oil unless you want the oil pressure idiot light to be on indefinitely. Unless you care, just pull the stock sender off and replace with the aftermarket one.