oxblood!z28

Looking to see if anybody has got an LS6 intake manifold for sale...I'm currently going to put my head and cam package on but i dont want to use my stock intake. Im trying to squeeze out as many ponies as possible. If you have a ported FAST 90 or FAST 92 for sale how much would you let it go for? I'm intrested in that as well. Thanks in advance..