There’s a lot going on in this photo. Let’s start with the pair of Holley boost-referenced blower carburetors. These Holleys use special metering blocks that add power enrichment when referenced to manifold pressure below the blower. There’s more—the Weiand linkage and fuel-line kits. The fuel lines were a breeze to install. The linkage kit took some time to finesse but was not difficult. The key is to open the carburetors evenly with the least amount of linkage travel.