not a bad result, cvh35 cam is a hydraulic profiled one, had the same once before.
plenty of head work and more boost is what you want to get more out of it.
infact why not a cosworth 4wd turbo?
i ran one on my 1.8zvh with 23psi boost and that just took off at 3000rpm, really was a fast setup, never had it dyno'd though due to a cracked piston in the end.