How much is my dads 1964 chevelle worth
Mileage, what size engine? Running and driving? Interior condition? Rust?
Without many details to go on, like options, etc. a ballpark price of fair to good condition, which I would say your Dad's car is, would be worth around $8 to $15K according to some online price guides.
Fun fact, in 1975 my Father bought a 4 door version for $200 from a guy he worked with at the time! Jim