Advise please 69 Camaro or L-34 Nova or L-78 Nova

[TimG]

I'd go for the car with an original engine and some type of paperwork to verify its options. The '73 Z with no paperwork has the L82 verified in the ID number and the Z28 option on the trim tag. Pretty good verification it is a true Z28, even without paperwork. As noted above, I wouldn't worry about a color change if the other things are appealing. In the long term, original engine and paperwork will hold their value. You do have to worry about exploding the original engine, though.