Wow what a read!! Firstly id like to say to you bobby that u are quite possibly the most forward thinking guy in the aussie car scene! Its because of guys like you that we have the mods available to us off the shelf. Im glad someone is interested in pushing the limit of the performance of the RB motor. The any gear, anytime approach to performance is a favorite of mine and hope to build mine in a similar way.
I am curious about a few things
Firstly, how come you went 2.8 rather than a 3L?? I would have thought more cc's would have helped??
Secondly why go with the 321 stainless?? Arent stainless manifolds normally made of a different grade steel than 321?? Keep up the good work.