Looks like a FUN build for sure.
I will offer a different opinion on your intake choice. Being your going to force feed this beast I would run an AirGap Torquer, you have the lowend covered with the blower and the mixture distribution is much more important at high(er) RPM than "low end" torque. Truthfully at normal drive around 1800-2400rpm cruise RPM,no throttle opening to speak of "low end torque" means near nothing because just a little toe pressure on the long pedal will have you in boost right now. I think in the real world you are going to want to kill some low end torque anyway.
Your new carb choice is right on the money though.