This is my idea, Im sure its not original, but its what Im talking about. Subs Im looking into 4 12" JL Audio W0s. I plan on making the port ends (way in the back) adjustable so I can tune it in perfectley. My questions are:

1) Will this desigin woork good or not?

2) If it will work, what kind of cubic feet would you reccomend?

3) How many sq inches should I start with on the port area?