Box For 2 Lv4's 2 1500d Sundown's

[Mr. Ben]

ok so my box is external demensions w/3/4 to conserve air space h=17 w=39.5 l=21 my port design so far is h=14 w=3 l=14.5 centered shared port tuned to about 33 i want to play music but still be able to go loud enough for local street c and 140 bass race's is this doable with my current dimmensions or should i change my port any????