That bracket above is a 1970 Camaro Holley equipped application..i.e. LT-1 & L-78.
That one looks like the much later issued #814 bracket,as compared to the original
design #982 bracket with the wider offset.
Here is the Nova-Chevelle #619 L-78 & LS-6 bracket.
Pictures were featured here last year in a topic by P.J.of their different variations.
