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View Full Version : another round port??



05_ZX636
06-08-2010, 07:17 PM
I had it planned to use 2 10" sonotubes for 17.5 cubes. Well, nobody in my town has them. So I was going to use 3 8" sonotubes. They actually measure right at 9". That would be 190 square inches of port, would that still work or would that be too much