port size

[warriorlax45 10+ year member]

im having trouble with the port size for my box.i have 2 12 rd classics. i want a 4 ft^3 box with 52 inches of port. im having trouble with keeping the right amount of space. any help?

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[Millertime1028 10+ year member]

http://img77.imageshack.us/img77/1389/4cubes35hz5425sqin2er.png

Will this work for ya ..

4 cu/ft net- 54.2 inches of port