I have owned some high performance boats that have been equipped with a large light at eye level on the dash that will come on if you lose
oil pressure. because of the noise in an open cockpit boat with 1-2 motors with open headers, there is no way you would hear a buzzer. I would think the same type of system would work well in a cobra, if you don't mind the look of the light on the dash.
Here is a link to the light. You would need a sending unit as well. I was only able to find fuel and water pressure sending units on their site, but I know they make one for
oil pressure.
http://teaguecustommarine.com//store...oducts_id=2779