Not too good with those subs but I'll take my best shot. If memory serves me right you need approx 2.0 cu ft per sub. If room isn't a problem I'd go with
Which would give you 4.68 cu ft but port space and displacement also take up some space.
EDIT:The reason I say to make the box as wide as I said is cause I'm pretty familiar with ''Vic'' trunks with the gas tank being a big box under the carpet in the trunk so I tried to minimize the depth as much as possible and make it up in width since width isn't a problem in these cars.
EDIT:I'm sorry I forgot to add specs for the port.
I'd do this for design from left to right of the box (sub) (sub) (port) port specs below for 38 hrtz tuning.
Height:14.5" -assuming 3/4" MDF wood-
Length of port:11.9"
Not sure how many square inches of port is needed for those subs.. but lemme know what you think.
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