Subwoofer/box question.
Excuse me as I'm not an fbody owner.. But you purchased this right?
http://www.subthump.com/acamarostealth.htm
So at .6 cuft, with an older JL 10W6, your box is too small and the port length should be at least near 3" x 18" in length. I'm sure that isn't the case here though...
Best bet is to see if you can get rid of the port and seal it good. I bet that will not be possible without applying some fiberglass and re-carpeting the box though.
.6 with a little stuffing is perfect for a sealed box though

Of course I could be totally wrong on your application

