Thanks for all your replys
In the years I'v had many turbo jap cars but thought it would be diffeent to try tune a N/A as I think with the lovely note of the 350z would sound amazing tuned also, Also I'm more interested in bottom end performance so should not be to much of a poblem I hope.
I remember reading a Jap mag which had a Mazda RX8 tuned N/A producing 470bhp which set me off thinking could something like this be done to a 350z