i concur with the above spend as much as you can afford on the head this is really important and will unleash more power for the same boost.. newman custom cam with sold lifters or a cam off karlos with one of his Superb stage four heads.. i use to run a t34 0.63 housing but now i have gone for a gt series turbo again if you can Stretch this far then get yourself a gt turbo mine made such a difference more then i Imagined hardly any lag pushes so much air and is twice the size of the t34... management options are huge, one wont give you more power over another and it all depends who maps it.. modern ecu have alot more toys.. but even cossie management has alot more features now...