HOLLEY 4BBL SPACER - Ported- Plastic Phenolic Carburetor Spacer. Carburetor Type: 4BBL HOLLEY. Notes: 1/2 in. Manifold Type: Standard 4BBL. Title: TRANS-DAPT PERFORMANCE PRODUCTS 1/2 IN. HOLLEY 4BBL SPACER - PORTED- PLASTIC PHENOLIC CARBURETOR SPACER.
