Generation IV External Engine - Ported TB on bone stock LS3 M6

Stock as a brick 2009 Pontiac G8 GXP before and after on swapping the TB out on the dyno:

http://i60.photobucket.com/albums/h15/Bo_White/LS3PORTEDTB.jpg

Round two on a Dynojet yesterday. I was rushed since I was planning on leaving around the time I got on the dyno so take it as you will.
OK, my scheduled time on the dyno day was at 4:30 got on the dyno and made the
first pull at 5:24:11 and made 357.40hp/367.46tq bone stock
Second pull 5:28:22 and made 358.40hp/368.86tq bone stock
Swapped the TBs out
Third pull at 5:37:42 and made 363.45hp/372.04tq bone stock with just the ported TB
Fourth pull 5:38:52 and made 361.13hp/368.26tq bone stock with just the ported TB
The engine was not even shut off between the 3rd and 4th run.
I overlayed 1st and 3rd/2nd and 4th:

http://i60.photobucket.com/albums/h15/Bo_White/PORTEDLS3TB1.jpg
http://i60.photobucket.com/albums/h15/Bo_White/PORTEDLS3TB2.jpg

Nice gains. I'm going to port mine soon.