I think the problem is that you have too many pistons and too many conrods. It's crowded in there!
No but seriously, which type poncams?
Whose dyno?
Dyno graph please, preferably showing boost, afr's and power.
Sounds like your missing 50kw to me.
Oh and do you have cam gears on there that you forgot to mention and if so what are they set to?