Flat Track 1970's at Ascot Park

This is two 8mm movies I shot during the '70's and edited together. The first part was shot at Ascot Park on May 1, 1975. Just a regular Friday night event during practice when I was about 15. The 2nd part was shot on July 23, 1977 at the Ascot park T.T. National also during practice because with 8mm film, you couldn't shoot once the sun went down and the lights came on. All you got was a black screen. Anyway this is Flat Track motorcycle racing from a long time ago. One Mistake... The first part in the audio I say that it's 1974. This is incorrect. Bad memory on my part. It is actually May 1, 1975