With the car started or off?Take the wire off the sender, and ground it. It should peg the gauge if the gauge and wiring are correct.
Key? You mean oil pump shaft?I understand. It's definitely got oil. The motor hasn't ran for a couple months. It's out of a 94 cobra and the motor was built by summit. I took out the distributor to prime the oil pump and that little key that goes to the center of the distributor is gone. Was there last night when I put the new distributor in.