of course you'll want to open the exhaust up as well. after the turbo, the main thing will be tuning to get the most of your setup. any idea how much boost you wanna run. do you plan on building the motor to handle a lot of boost?
A stock D-series motor (any with MPFI) will handle a small turbo set up. You can run a low boost(10psi or less) up to about 200HP with no problems. That is IF you have it tuned right. I would suggest a chipped ECU and have it tuned on a dyno. My stock DOHC ZC made 160HP with a T-25 and an HF manifold.