So is your box setup for and supposed to have 4 injectors.....?
the 1000 has 4 injectors, apparently the stock setup, they are kind of based off throttle positioning, so i know i had guys ask on another forum about how the box works, some boxes might just try to adjust fueling as with what injectors are on, but that dont work, so this box i guess, leaves the sled doing its own thing out of boost, but when boost kicks in the box takes over with all 4 injectors on, even for 1 pound of boost or 10,
but the guy whos been helping me out is sleding4life he has that tube'd up, red chrome'd 1000, and he runs the box, worked well for him all these years, and the time my sled ran before she blew up, it pretty much seemed flawless, fairly simple box to use, just got to adjust a few things to get er to run good at wot,
they go with the concept of, taking "jets" to fuel injection, you have your idle jet, main jet, and mid range jet???? , not too sure on all that, but it works and thats what matters