My dyno was nearly the SAME as you..I understand your disappointment.
My setup:
N1 cams (no cam gears)
JWT Pop Charger
3inch exhaust, SSAC header
DE MAF
stock de intake piping
Calum Realtime (pito bin) (base timing @ 15deg)
I have since replaced the maf with an n60, as well as a proper 3inch intake tube. And took out my cat. My cams are activating at about 5700.
The other day I pulled on a supercharged Grand Pri my buddy drives from a roll. He ran a 13.8 in the 1/4, I had over a car length on him at the top of third and pulling away. This was an a closed course. This is for reference.
Here is my dyno chart:
Lets get to the bottom of this, I'm trying to feel that 200whp under my bum!
Dudeman