The 422 club my brother races with now lets them run a single Holley. He is now using the Indy single plane intake with a Dominator. Ron

The indy manifold is a great piece, especially if you have some good indy heads to go with it. kind of pricey around $1,200 just for the manifold. One thing about them is you have to give it throttle when cranking the engine, they are prone to backfire if you don't, see a couple lift the top right off.