Worth of a \'78? I found a '78 blazer thats in decent shape. The body is straight with just a little rust. Fair paint. I haven't driven it yet, but the guy says the timing is off. Its his brothers and he says it might need a new engine (chatters under a load). I'm going back tomorrow with a friend who is a mechanic to check it out closer and drive it. He says he'll take $1250 firm. I thought about taking 700 - 750 cash and see what he says. What is worth if the motor is shot?