Universal Billet Vacuum / Boost Reference Manifold Block (FR-UNI-VAC-BLOCK)The Full Race Universal Billet Vacuum Boost Reference Distribution Block is a CNC machined aluminum manifold designed to simplify and consolidate all of the vacuum and boost reference lines in an engine bay. By providing multiple ports from a single, reliable source, it ensures clean, stable, and accurate pressure signals to all connected components. This allows for a much cleaner engine bay aesthetic and is essential for reliable operation of boost