That should be fine. What Chip are you using ? I have an extender chip which gives the ability to tune fuel for spoolup, I leaned mine out to get it right.
If you don't have this ability, maybe just as an experiment lower your fuel pressure to 40 or so then launch, the car will likely fall flat at the top end but if spoolup is improved then maybe that is a hint to the cause.
Watch your O2's as you do this, if they are too lean then let off ! Otherwise if this doesn't solve it perhaps the converter is not stalling properly or as high as advertised.