Moving right along nice score on the drive line!
Here is some food for thought on some bracketry
https://www.holley.com/products/fuel...s_and_linkage/ also you might take a look into other GM/Chevrolet models of the era that came with a Holley like Corvette, Camaro & Chevelle all came with a non throttle cable linkage set up similar to yours for ideas.
