brocken

is this is the wrong spot?

Howdy all, it's the noobest noobie. I just purchased a Level 3 10 with level 4 coils and extra spider. This is going in a 2010 F150 supercrew and there's a premade box that has 1.25 cuft. If I understand the specs correctly, that's an optimum volume for this sub for ported? I was hoping I can use polyfil to compensate for the driver's volume? My goal is more SQ than all out output. Would I be better with the 1 cuft box volume ported? Also, with either size box can I get a recommendation on port diameter and length? I tried modeling the sub in Winisd but must have entered something wrong. I got a really high volume for the box, like 50 something liters. Thanks!