What is the best way to verify that the car is a real SS, not a clone

http://www.chevelles.com/shop/ss_ident.html

check the VIN . a lot of those car were cloned into SS .

CHECK THE FLAGS ON THE FRONT FENDERS, ALOT OF PEOPLE DIDN'T THINK TO CHANGE THEM.M OR DIDN'T KNOW THEY HAD DIFFRENT COLORED FLAGS.

the flags on the fenders ? really ? what are the chances of somebody removing the emblems in 42 years or somebody adding them to a malibu ? that answer makes no sense.

What year is it ?Should tell by vin tag,if it's not Been changed. But 1969 only sure way to tell ,the paint code 72 or 76 were ss only.You could order these colors on others but paint code would read _ _ no number