Personal preference at end of the day. Car was epic fun to drive to 120mph (where conditions allowed).
I have a motor thats built for big turbo setup....however only going TSFI k04-064 as the chassis wont be able to cope with the power I want and how I want to drive the car. Could easily have a blower on there to make 550bhp, however 375bhp will be more suited to the style of driving ive built the car for.
Bigger isnt always better...
Id much rather have a car I can enjoy from 3000rpm to redline around country roads, occasional track day than a car which only has power 5500rpm- redline and can only go in a straight line.
Swings and roundabouts.
Since I don't have to funds to build a second car, let alone have room to store it, I thought about this also and decided on a "quick change" turbo setup. Everything will have v-band clamps and quick change fluid couplings where applicable to minimize downtime between turbo swaps. Exhaust/boost plumbing and turbo intake to fit both turbos. I'm thinking swap time would be under an hour.