CVR12 port area

[geekepunk]

I'm going to run 4 12" Kicker CVR12's in the X-cab of my truck and I'm wondering what I should do for port area. 

I'm pretty limited on space, though I have 8-9 cubes of space to work with which should be just under the recommended amount for those subs.  The port is going to be firing up along with the subs.  Can I do a real long port?  I was thinking like 38" x 2" or something of the like....I just don't know what kin of port area that the subs need and what I can get away with. 

Any suggestions or comments are appreciated!  I can't get a reply from Kicker so that's a no go.

Thanks!! ;D

[Ernesto]

I'd do 38"x3"

If your doing 9cubes.

[Ray]

38x2.25

[geekepunk]

Cool!  I will try to be somewhere in between 2-3".  Is 20-30 in^3 the norm for a 12" woofer?

Thanks!

[andym85]

arent u suppose to try and keep like a 9:1 ratio for port area, or does it really matter?