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Ships within 48 hours · Estimated delivery Oct 10 - Oct 15
Up to 15 psi Boost
Use with Crossmember BHS572 (sold separately) and Transmission Tunnel Hoop BHS578
Jet extensions should ONLY be installed on rear fuel bowl
ALL68322 has tabs with 1/2" holes and mounts directly onto a 3" axle tube
Moroso 1" Billet Carburetor Spacer - Fits Holley 4500 Series Open Plenum Design Z-Tech Sports Up to 15 psi BoostExtends length of intake mixture column to improve air fuel distribution CNC machined from 6061 T6 billet aluminum to extremely accurate specifications Billet aluminum eliminates porosity and improves engine appearance Available with 4150 4160 and 4500 Series Holley(R) bolt patterns to fit a variety of carburetors 4150 4160 Series Spacers available in 1 2", 1" and 2" thicknesses with open plenum and 4 hole designs to suit tuning requirements; 4500
