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VACUUM SECONDARY SPRING KIT. The Edelbrock 1963-1979 Nova Edelbrock 12412 Vacuum Secondary Spring Kit includes 7 springs, designed to control the vacuum secondary throttle opening on compatible carburetors. This selection of springs allows for precise tuning and improved throttle response, making it an essential component for optimizing carburetor performance and ensuring smooth engine operation under varying load conditions.
_x000D__x000D_CONSTRUCTION AND APPEARANCE. Made from durable steel, these springs withstand repeated stress and operational wear. The kit includes seven springs with a clean, uncoated steel finish, emphasizing functionality and durability.
_x000D__x000D_INSTALLATION. Installation is straightforward for those familiar with carburetor components and requires no drilling. Springs fit directly onto designated carburetor vacuum secondary levers for secure and precise mounting.
_x000D__x000D_WARRANTY. This product comes with a 12-month warranty covering manufacturing defects. APPLICATION. It is specifically designed for Holley 4150, 4150HP, and 4160 series carburetors, and is compatible with various Demon and Barry Grant models as noted.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov