I scored a B4B for a price that was to good to pass up. :grin: It's the dual pattern type that will fit either a Holley or Quadrajet, and is straight across at the heat riser as opposed to the earlier ones that were not. I was wondering what types of mods or tips that need to be done on this manifold. Looking at the ports it looks like I will have to at least port match it. Anything else needed on these things? Thanks:TU:
Jim W. made mention that some B4B's have messed-up/misaligned water passages. Might want to check with him before you spend the money to modify it.
depends on what HP you're after. They were notorious for very uneven flow #'s between the runners - up to and above 20% worst to best variance.
