Video Description from YouTube:

This is the 1977 running of the Twin 125’s to get into the Daytona 500 that year (only the first race is present on this upload; no edits were made by me).

This footage comes from the NASCAR Classics Website. This is fair use; I make no money off of it.

Credit goes to NASCAR & ABC (ESPN)!

SPOILERS: Cale Yarborough won the 2nd race of the Twins.