I have a Holley street dominator (cant find specs), and an Edelbrock torker intake manifold, I am running the big valve heads and a pretty beefy cam.
I have been running the offy 360, (max 5k rpm under load) but it keeps blowing out the gaskets @ the egr blockoff plate I think I will get more out of a different manifold, I really dont want it to go much over the 5k mark anyway, but it would be nice to know its there ........If and when I need it