trying to decode my 69 rs z28

[70 ls6 convert]

im sure glad i didnt just tear the car down and start sand blasting the body,could of erased those marks forever,i will check for the booster numbers tomarro,thanks alot.by the way the guy i bought this car from in mississippi a year ago,told me it had been sitting for 18 years,he had no idea what happend to the motor and trans,i found the old owners name in the glove box,im gonna try and get a hold of him..kris