Josh,
First, welcome to this site. Second, you might want to look for an Edelbrock O4B manifold. It is an aluminum 4bbl type. I think you can find them in both spread bore and square bore patterns. I have one on my 455 with an Edelbrock carburetor and really like the performance and streetability. I am told the O4B doesn't comprimise as much on performance as the newer "performer" models. You may also find one that may be a little cheaper than the new ones.
Anyway, just a thought. Good luck with your search.
__________________
Dan
'77 Cutlass Supreme
'46 2 door
"The rocket 455.....it's a sledgehammer approach to a thumbtack world" LuxBlue of HAMB.
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