Canadian 66 Fury

I bought my 66 fury III VIP 2 door hard top when I was 19. It has the original poly 318 wide block in it. It had been sitting since 1987 when I bought it in 2002. I started working on it about 10 years ago but then kids came along. I’ve rebuilt about 80% of the car now but have some questions about the car as information on them is a little bit murky at times.