How would I tune a box?

[Puppet Master 10+ year member]

Im making a false floor box for my blazer and im putting four infinity kappa perfects in the box and i was wondering how do i tune it.

I made my own box plans and it is a little more than four cubic feet.

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[tank65 10+ year member]

if your going ported, use this

http://www.carstereo.com/help2/Articles.cfm?id=31