Yes
No, 2 differen't body styles.
Yes I have a 64 and repairing the quarters with 65 skins. They are identical.
Yes. They should bolt right in.
A standard Chevelle frame will not fit an El Camino as it was based on the station wagon frame
'64-'67 Station wagon or El camino frame.
No sir 1962 doors have different body lines then a 64. 62 bel air or 62 biscayne doors will fit but with biscayne doors you will have to drill holes for the moldings
No, an exhaust leak would have nothing to do with your engine timing.
64
yearone.com and you can use the fusebox from the regular 64 chevelle, it's the same.
about 250 horse.
64-65-66-67 chevelle.
Yes