I think we can get her up to about 40, possibly 45, but I do not know if I have the kahunahs! No big hills to worry about in Iowa. I read the best way to get them up a long hill is to go backwards. (The problem is there is no fuel pump, so gravity feed only. Going uphill can put the gas tank lower than the carb.) I hope to get her home today or tomorrow, if it does not snow. They have been working on her at the local Ford dealer plugging the leaks. My dad (90 year old) says they all leaked. That was how you told that everything was getting oil! I have been warned about the crank. It can hurt. You do not want to use our wonderful opposable thumb when you crank. You can break thumb, wrist, or arm - depending on the old lady's humor. But, I must admit, despite the challenges, she does have a certain irresistible charm.