Those are original 64 carbs numbers 3361 and 3804. I won't be using those on the crossram not sure what carbs I will be using yet. I have a set of edelbrock on a eddy dual manifold that is going to eventually come off and a 881 and the 64 carbs going on as that cars a mostly original car and I know the 881 does not flow as good as the edelbrock but I want that car to look more correct.