I would assume its a Series II since the title says L67. I'm guessing he has a Gen V blower though.
We need more pics or link to your build thread. Freaking awesome.
I agree...let's see build pics
http://www.grandprixforums.net/my-06-gp-gxp-72403.html OBX headers, TEP tranny cooler, ls1 IM fuel rails and injectors, ls2 TB, ls7 MAF, full custom exhaust, Quad retro headlights, full out front and rear suspension work, tuned by HPT by me 8====>