well u mayb in luck my car is a 72 250 and my zenieth carbs were running great-the car has 53,000 orig miles i just swaped them for the weber carbs becuase i like to spend money and have a nice toy-by the way the weber carbs and the pertronix module pat 1867 make the car run like an airplane for your info-i can let my carbs go for 100.00 if interested