I am looking to add a mechanical oil pressure gauge to my 92 chevy this weekend. It is a 350 with one of those stupid elbow adapters for the oil filter (which is pissing oil right now, but thats another nightmare). I am curious, is there anyway I can add the sender in that adapter? The reason for the change to the new gauge is that my gauge is bouncing slightly under and over 100 kpa at idle, and just bounces back and forth. It also jumps from 100 kpa to just slightly above 300kpa at WOT. I would like to see what is really going on here. Thanks.