For that power your turbo is way too big and larger valves is not the right way to go, your just going to loose throttle response using those two parts.

Mountune set up is good for that power, giving excellent response being barrel throttles.

The mis would be good for midrange torque as its designed to be a rally x inlet and being on a restrictor torque is what they want, I don't think that plenum would be restrictive until way past the power levels your wanting.

The new tibuc inlet would be nice for what you want, giving excellent throttle response and midrange, but I think the plenum size is a little small for outright power, but as above, at the power levels your looking for you won't have an issue. Other than the cost, and the fitment to the car

Power wise wi that spec, dependant on cams and headwork you should be seeing high 6s or low 7s

I don't think roper does a big enough exhaust port for this power though, you'd also have to be careful with cam choice being on a larger valve as valve size effete is massively!

My advice would be to go back to standard valve size and use a smaller turbo