When I went back there & did a search "exhaust manifold" for them this morning I could not find them either; only the same ones Texanidiot25 referenced.
But they already sent me a shipped confirmation Friday. The ones I ordered from Speedway were part #9300327-R (still not clear on whether I should have ordered lefts instead). I punched that # in & they still show them
http://www.speedwaymotors.com/2-1and...olds,9133.html
My total shipped & all was $140.25!