After working on it a long time, we have just gotten our 1953 3800 on the road. It has the 17” bias tires, and original gear ratio. I have not verified the speedometer with another car or gps. But if I get going in 4th and just kind of have my foot on the throttle some to where it feels “right” the speedometer shows I’m going 30 mph. I knew these trucks were slow, but that’s slower than I thought. How fast do these trucks cruise in stock form?