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Discussion Starter #1
1) cam motion ls2 stage2 no need for stall ( LS2 Stage 2 - CAM MOTION ) all specs on website

2) rpm outlet stage 3 it needs stall ( https://www.rpmoutlet.com/08-09-pontiac-g8-comp-cams.htm ) it is the last one on the website

3) other

i am looking for max performance the car is kinda daily driving i am only looking to install cai, headders, catback, and camshaft, maybe intake manifold. i have 2009 g8 gt auto trans
 

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Not sure if you noticed it or not but those RPM Outlet cams are DoD cams. The Cam Motion cams are appropriate if you are deleting the DoD.

I would delete the DoD and go with the LS3 Stage 2 cam not the LS2 version. The G8 GT has essentially LS3 heads and intake so the LS3 version of the Stage 2 cam is appropriate.
 

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XFI AFM cams are very interesting. Never heard from anyone who has installed but looks good.
I like XFI AFM 270, no need for stall with Comp 270PHR15 which is 220° int and 115 LSA.
Also consider higher ratio rockers, is what all who have large base circle AFM use. Also consider 4° advance in a custom grind.
Here's a deal off the shelf:
https://www.amazon.com/COMP-Cams-656-422-13-Camshaft-270PHR15/dp/B0066STV9Q includes cam, lifters, lube and instructions for $453.
 
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