The truck is a 67 ford pickup. The radiator should cool up to 700 hp. It is from BeCool. The front of those trucks can except a lot of air flow. In town at slower speeds I run the fans, and it runs around 200. As soon as I run it at 50-60 mph the temp starts to climb. I manually keep the fans on and I have shut them off, and there is no change. I am beginning to think this is a timing problem. I will set the timing tonight and check the plugs for how lean it is running.
Running without the t-stat??