550s? you're out of fuel man. end of story.
wtf does closed 34% mean? 66% duty cycle? no way. you have to be topping those things way out.
550s are good for, oh, 250-300 whp tops.... and you won't run 11s with that.
i think you have a fuel problem....
be it a pump to get it there, a line to feed it, or an injector to deliver it.