I am thinking of getting an aftermarket oil pressure gauge. It will be an electric one and more than likely it will be the autometer cobalt series oil pressure gauge. Now I have heard that there is a way to hook this up and keep the factory one as well. I was told that there is a hole by the distributor and one by the timing cover that I could use to put the new sender in. Does anyone have any pics of these holes so I know what I am looking for. Any help would be appreciated.

 

both are 1/8 NPT, one is on the top of the china wall left of the distributor and other is around 11 o'clock (standing in front of car looking at engine) near the timing cover.