I just bought a 1961 Galaxie 500 its been sitting in a garage since 1969.The guy I got it from thought it was a 406 car, its not.I figured this out through your forum,but this motor has thunderbird valve covers duel point dist cast iron headers alum 4bb intake it still has the nut locks on the headers.The vin says its a 390 car.the date code puts it at 1961 but I am confused.here are some # 1A13.3 cast is C1AE6015V heads G1AE6090-A intake has no numbers other than firing order I cant get to the # on the headers. Can anybody tell me what this is?