It's a 71 chevy truck. It has the factory guage with increments, just no numbers. Gauge works properly though, I drive the truck now with a different engine in it. I am not sure at this point I mean, running the engine without the valve cover, I could physically see oil pumping up and draining down. Blowin my mind. When I get it home this weekend I am seriously going to check the oil passages for trash though.
