Just wondering your guys perspective on a system set up, I am doing a 1985 delta 88, two jbl gti 15's, a jbl bpx 2200.1, I have heard from co workers to do a ported box, I like the sound of a sealed box, my goal is to reach 149 db's, which I know will be very difficult in such a large car, any info or helfull hints would be appreciated, for ported air space they recommend 4 cubes ported, but i have a huge trunk, and trunk space i'm not to worried about, thanks guys