What's would be the best type of box design for 3 kicker 07cvr 12's in a 04 suzuki forenza? I hve a few ideas because right now I'm runnin them inverted on a seald box and my best db score has been a 140.2. I know I can do much better than that and I knw its because of this seald box. Any ideas to get 150 or better. I'm pushin them w/ a zx1500.1.