ported boxes

aright im buildin a  ported box right now just for experimentation.......few questions.............

1) if the construction is crappy.......like edges dont line up perfect and all that sh*t......as long as its air tight (minus the port).....its will sound decent right???

2)this may be dumb.....but do you stuff ported boxes like you would a sealed enclosure??????

3)im using caulk with silicone on all the edges to seal it air tight.....is this alright?

The better the construction, the better the sound.     That said, as long as you make the thing structurally sound and sealed it should be ok. (Understand that filling gaps with caulk will seal it, but the box runs some risk of splitting, especially with sealed designs at high power. Try to get things square and tight. When done right, butt joints with wood glue are very strong.)

Not everyone agrees on this, but I prefer to line ported boxes with convoluted acoustic foam. Even the kind sold at your local department store as a mattress pad works pretty well. Lining will minimize any deviation from the projected performance based on T/S parameters and box size and tuning. The lining minimizes the amount of midrange frequencies projected through the port by absorbing some of the acoustic energy from the back of the driver. (Many people feel that no lining is necessary for subwoofer systems used in cars given the steep crossover slopes used with such subs.) Stuffing will alter the tuning, and may cause frequency response to approach that of a sealed system if excessive.

  https://www.geocities.com/kreskovs/Box-3.html

In general, use the design recommended by the sub's manufacturer.  

Silicone should be allowed to cure thoroughly before mounting your sub. Vapors from silicone have been known to attack the surrounds on speaker drivers.