As one of our friends has pointed out, it would be very easy to spend $20k on an E body, but unless it is really super special, then it would be hard to get that. May be some one is particularly looking for a 440 car, & its is very, very good, it could be worth that to them. I know we put a fair amount of work, & a few dollars in Steve's '73 44o Cuda, (also not orig or #s matching) But I'm pretty sure that $20K would not begin to move it, so this is something an individual must decide. Is it rust free? Has all body repair, if any, been done in a manner as to be unnoticed, & done to last? Can the owner prove to you what has been spent on the car, & if possible, see who has worked on it? If all these things can be satisfied, & you really want a 440 car, then maybe you should buy it. Bear in mind that you may, or may not be able to sell it for that when you want to get rid of it, but then, if you buy a new car, the same is true. Good luck, Ovmf