More info
This race was the Winston Western 500 held on Jan 20th, 1974.
This is verified by the first pic with the #16 car driven by Gary Bettenhausen driving the AMC Matador. He was sponsored by AMC.
The first pic must be the start of the race
In the first pic there is:
#16 Gary Bettenhausen (started 5th, finished 7th - 6 laps down)
#43 Richard Petty on the outside (started 6th, finished 2nd)
#38 Jimmy Insolo (started 7th, finished 23rd - engine failure)
#72 Benny Parsons (started 8th, finished 4th - 3 laps down) you can barely see his car
#96 Ray Elder (white car) he started 10th, finished 34th - transmission
#2 Bud Hagelin (started 11th, finished 31 - ran 44 laps and got $720 bucks for his effort.

Actually this doesnt look like the #2 car though.
Leader board in the pic shows the top 5 spots
#21 David Pearson - finished 3rd
#11 Cale Yarborough - Won the race after spinning out in picture 2
#12 Bobby Allison - finished 5th
#15 Goerge Follmer - finished 18th
#16 Bettenhausen
second pic:
#2 Budd Hagelin
#88 Donnie Allison
#72 Benny Parsons
#11 Cale Yarborough spinning out
cant make out any other cars after that
WINSTON CUP STANDINGS (TOP 10)
Rank Driver Points
1. Richard Petty 5038
2. Cale Yarborough 4470
3. David Pearson 2389
4. Bobby Allison 2019
5. Benny Parsons 1592
6. Dave Marcis 1378
7. Buddy Baker 1017
8. Earl Ross 1009
9. Cecil Gordon 1001
10. David Sisco 956