need help with box specifications

[jakekruika]

So my current set up that I will be installing is 2 alpine swr-12d2's running series parallel to equal a 2 ohm final impedance. They will be running at 550rms a piece. I would like the box to be tuned to 35hz.

I would like help with port six. Whether to go single or dual chamber, cubic feet of air. What type of ports, and any other information that you can provide. It would help a ton thank you all so much!