[CSX 4027]

What all seem to be neglecting is that the most popular S/C comp set-up is the single 4 vacuum secondary LeMans Bowl 780 CFM Carb with the turkey pan.

The other important is the size of the hole in the hood under the scoop. That is always the clear indicator. The single 4 had a small oval of which I have the template off of various original hood S/C cars.