2" Phenolic 4-Hole 4BBL Carburetor Spacer w/ Gaskets & Hardware International V8 and 385 Series Big Block

and 385 Series Big Block engine applications

Height: Tall

and the vacuum advance adjustment tool allows the curve to be tuned for your specific application

GM trucks equipped with compatible rectangular-port LS engines

2" Phenolic 4-Hole 4BBL Carburetor Spacer w/ Gaskets & Hardware International V8 and 385 Series Big Block2" Phenolic 4 Hole 4BBL Carburetor Spacer w Gaskets & Hardware This 2" phenolic 4 hole 4bbl carburetor spacer w gaskets & hardware is built for carburetor spacing, intake plenum tuning, and carburetor mounting height adjustment on compatible carbureted intake manifolds. The spacer design can help improve airflow transition and simplify carburetor linkage or clearance adjustments depending on the application. Use it when additional carburetor height,