Sorry just noticed in your sig stage 2 T3, so I'm assuming .36/50?
That will flow for 230bhp on a 1.6 CVH so should be very very similair on your engine but not at 15psi of course.
The power doesnt really tail off either, it drops by about 10bhp from 5750 to 6000 when he lets off, thats normal.
From just the graph and your spec I would say you just need to run more boost to make your target BHP (and some bigger injectors), is the head untouched?
Oh and the CVH35 is a hydraulic cam profile not for use with solid lifters... Look at Kent website http://www.kentcams.com/product-deta...'-R-'/