One set is reproduction carbs from Summit that I bought a couple of years ago. The others are a new set of Direct Connection mechanical carbs that I've had for over 30 years. Here's a pic of them on a manifold I bought new from my local mopar parts department sometime around 1978.
Maybe it's the picture or maybe it's me but is the front carb sitting away from the center carb? On mine it sits right up on the center carb with no room in between.
