Ported box design for 2-kicker cvr dual 4 12"subs

[RTD2]

I'm in need of accurate ported box design for my 2-Kicker cvr 12s in my 1998 Dodge ram ext cab truck. I listen to mainly rap music so want it to hit the lows as well as the higher bass. Currently have the zx750.1 running at 4ohm but plan to purchase a 1 ohm stable amp because someone stole my last system. Any and all help is appreciated.