Cid=cubic inch displacement 2V is a two barrel carb 2.79:1 would be the rear gear ratio unless I'm mistaken The cleveland part...your guess is as good as mine.
DSO (Domestic Special Order) District Codes Cleveland is the city of the dealer that took delivery/ordered of your car and yes, 2:79 is the factory installed rear end gear ratio
I was into Ginger when I was younger.. Mary Ann woulda been great too though.. "V" is for venturi (if I spelled it right). But yes, 2 barell carb. You will probobly want to get some rear end gears..