Here you go mate,
Where a cam, head and larger exh. housing etc would help is high rpm, my power and torque tailed off pretty badly, especially if you compare that to crazycages graph above, with a better head, cam, and inlet and larger turbo his just keep making power, pretty linearly to We make similar power off boost, i suspect this is due to the larger exhaust housing providing less restriction to flow, rather than cam/head etc, but after 2000rpm there aren't really too many similarity's lol

Rob,