Olds/Pontiac 9.3 in an A-Body?

In the late 70's there were disc brake conversions offered for them, before that most all were run with 11 x 2 1/2 brake drums and shoes. The swap was also popular with the 55-57 BelAir guys. I ran one under my 27 Ford roadster truck and my 39 Ford Deluxe coupe way back in the 60's.