Offy 360 was names that because both banks could pull from the entire plenum, not a more common "180" design that pulled from one side of the (divided) carb. See all the intakes that were produced. WTH is a dial-a-flow?
http://tr4a.weebly.com/uploads/2/1/9/8/21980360/offenhauser_catalog_part1.pdf
