I'm pretty sure you will need a different sending unit... your guage will not work with the current sending unit since all it does right now is get to a certain low pressure and then make the light illuminate... on your guage you'd see either nothing or full swing all the time, unless the oil light was on, then it would be the opposite.
Mine was done by previous owner, but they used a hole that you have to uncover below and to the right of the throttle body and use a pipe fitting, then put the new sending unit in that.
Maybe searching around would help?
