Hey Denis, kudos to you and your Z. I live in the Lancaster County, PA but can't say I crossed paths with the car back then. I was a high school kid at the time and would stop by Twin Pine Auto Sales on a regular basis to drool. They had a great selection of muscle cars at the time. I distinctly remember looking at a '69 Shelby GT500 convertible there on sunny day in 1974. Gulfstream Aqua, white top, white interior, 428, four speed. Mint condition. As a poor, skinny 17 year old, I had to pass on the then steep price of $4,500! BTW, Twin Pine is still around although they now specialize in more pedestrian vehicles.
Again, contrats on your beautiful car!