Super Victor - do I grind out bulge under carb pad?

From what I have seen, that bulge area gets ground backwards and contoured into the runners roof.

Do so check others work before proceeding as to copy the work. The general idea is to create a longer runner at the roof. (Raising the roof line.) Remove the obstruction and smooth out the path for the air (& fuel, which has a harder time turning from downwards and then making a 90-ish degree turn into the runner.)