In the Quadzilla Tunes Forum you cannot start a topic. The only way to start a topic is to submit your exported tune file into the Download area. Once you uploaded your tune file the forum topic will be created here in the Quadzilla tune forum. This will allow for discussion of your tune and allow other like design vehicles/owners to test, review and aid you in making a better tune.
I wouldn't say a 4k box isn't streetable. without understanding what you are doing tuning wise it won't be very friendly. I'm daily driving my truck with a 4k box. Blue Chip has a very good write up for diagnosing a bad vp44, it's saved me from a a couple costly unnecessary pump replacements
Here are some more photos off my big camera so far... IBMobile's wonderful 5th wheel RV.
MoparMom (left) and IBMobile (rght)
IBMobile Wife (Left), JAG1 (Center), MoparMom (Right)... Diesel (Down in front)...