yea our head flows very well, even the stock cams are quite turbo friendly at reasonable power levels. a ported head is good for top end and helping a motor to breathe better never causes any harm. however, think of a $ to HP gain here, 1000$ head work wont get you as many ponies as sticking that 1000$ toward a nicely done turbo setup.

think about it, ask yourself a few questions like can your car handle the power? can you maintain the car or repair it if it flings itself apart in 50 miles? if you're honest with yourself you'll do just fine.

edit: oh yea...and USE THE SEARCH NO000b!