I would take Spoolers advice on this, as he and a few others, are in the "black hole" of boost and power with the VQ. You also may wanna look into head lift and cylinder walk as well, since you are looking to push a lot of boost. If you haven't read Spoolers thread cover to cover, you should (
Fast Intentions Stage 2 TT build by MA-Motorsports.)! A TON of useful info there from not only him, but other vets in the VQ community!