will ported work?

The CVR should be in a vented box with a minimum 1.75 ft3 as shown an this chart http://www.kicker.com/ShowPage.cfm?filename=compvrsub.html&menu=SUBWOOFERS  You might consider adapting your box for one of them and building another.

Double-check your wiring on the speakers and the wiring to the amp.  Are they DVC 2 ohm or DVC 4 ohm?  When you say the bass is "real low", it sounds like the problem might be related to impedence.

When you have checked that all out, post what exactly you have and how its hooked up.  If you decide to go ported, there are some good calculators available to determine the port size to use.

i have dvc 4ohm subs ran parallel to 2 900 watt rockford fosgates if i were to put the port ina 2.2cu ft3 box what size port would i use

4ohm dvc runnin parrallel to 2 rockford fosgate 900 watt amps

i wanna put a port in the box but what size for a 2.2 cuft3 box

imeant 2.2 per each chamber sry for nto clarifying that

i need the port size i want some hard hittin clean bass