Aero Port Help!

[TRTC360]

So my dad purchases a pre-fab box for me in a hurry to have the car ready for slamfest, yada yada, long story short I can't build a box until after the event but i'm looking to modify the one I have now, the box is 1.60 cubic feet per chamber, 1.50 after port displacements, what I want to do is take of the top of the box, remove the dividing wall and the ports it has right now, I wanted to run a 6" aero port but have no clue how deep the port has to be inside the box to get my desired tuning frequency, I tried using torres but I have no idea how to put in the dimensions of this box since it's a weird design,

there's my box right now, do you think I should do one 6" aero port or two 4" ports? how big does the cutout have to be for a 6" flared port? my desired tuning is anywhere from 30-36hz, the box is 3.20 cubic feet before all displacement, please give me your opinion!

[TRTC360]

can I get some help please?

[new guy]

go to torres calc. in the bottom right corner it says desired gross volume put in 3.2 and then mess with tuning

[StrongmanDesigns]

6" will work but you'll need it pretty long. cutout is 8.25" but there are some manufacturing variances.

[TRTC360]

6" will work but you'll need it pretty long. cutout is 8.25" but there are some manufacturing variances.

that's what I was worried about I only have 7" of space between both subs, so i'm guessing i'd need to go with two 4" ports?