Cam upgrade or LS6 intake?
I would do the LS6 intake you may be happy with the present cam after the Intake swap... I've seen first hand gains of 10-15 hp with a LS6 intake, since you already have a cam swap.
Just my .02cents
You're at 380 RWHP right now, and let's say that you install a beefier cam (along with the necessary valve springs) and end up with ~400 RWHP. Great!! Except that we have all seen cars with beefy cams (like the G5X2, which, out of the cams you have listed, I am the most familiar with) belt out 10-20 RWHP more than you may make by doing the same cam on an LS1 intake... with the only difference being that these cars have the LS6 intake.
That being said, it depends on your plans for the car; are you planning on doing both intake and a bigger cam anyway?? With the only question being which one to do first?? Or is it either intake -OR- a bigger cam, and that's it?? If you're planning to do both anyhow, I'd say do the LS6 intake now, and allow your current/future mods to live up to their potential. However, if it's just one or the other, I'd say to do the cam.
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