Sam, I think I found it:
https://www.youtube.com/watch?v=E-Irix1dC_o
"This documentary, hosted by Dave Despain, features incredible footage from the 1971 NHRA SuperNationals in Ontario, Ca. There are neat interviews with Dick Landy and classic footage of Top Fuelers and Funny Cars. This two-parter is 30 minutes in length."
Awesome!