looking for intake carb / manifold recommendations for 318 1973 La block

From several dyno tests seen, the basic take away was there basically equal in performance. The Performer was designed as a direct replacement to the factory intake only in aluminum. So that’s an easy 25lbs.

As far as a carb goes, if you don’t want the TQ, the previously mentioned AVS @ 650 cfm is a good fit. As I said earlier as well, use the thick Edelbrock carb to intake gasket to keep fuel cool. The throttle cables you posted earlier are fine as well. You won’t need the throttle bracket adapter ether.
I started researching on everyone's comments and in a quarter mile the stock was 2/10th faster even with the exrea weight, over a performer. I get it depends a lot on the setup inside the engine but if the two are that close i'll keep with the stock. I like the Lokar cable setup, it looks neat a tidy and (less is better).