Slants still had Small Bolt in 73 if drum. But if disk had Large Bolt and 14 inch.
My 1973 340 is disk and had large bolt 14 inch wheels
Also since 340 car had 8 1/4 321 sure grip.
When I swapped it to 8 3/4 could not give the large bolt 8 1/4 away.
No one wanted to change to large bolt on their A Body locally.