There was a jetting kit released by Chrysler for use on the “Vanke” manifold which included boosters, rods, jets. I beleive the cars came with this kit already installed. If the boosters are stamped with the part number then likely they are the same as in the over the counter kit,

The cheater carbs are called exactly that because they looked stock on the outside but had larger primaries.
You would never make it through NHRA tech with those carbs since tech measure the main and booster sizes amongst other things in the carb. Every time we went through tech they always checked the carbs.

NHRA does not list them as being legal because they have larger primaries than stock.