If you're going to go with this carb, or any other Holley 4150 type, get yourself a cheap used copy of Urich and Fisher's Holley Carburetors and Manifolds. Some of it is marketing BS, but the fundementals of how the circuits work is invaluable. So is the explanation of transfer slots and drilling holes if need. Also their tips on road racing can be translated to street/general purpose tuning if you have your thinking cap on. The smaller Holley 4150 book by Urich covers the basics - so that's an alternative.
