Go Goat,
I bought my GTO new when I was a senior in high school May 10th 1967. I have a 30 over 454 "Chevy" BB in her a roller cam and solid lifters, a Holley 750 racing carb, Pete Jackson gear drive, and MSD ignition all the way around.
I have a Borg Warner Super T-10 2:99 1st gear and 4:10 Chevy 12 bolt.