The Spectre 2 in 1 Carburetor 1" Spacer is a high-quality aluminum spacer designed for four-hole and open manifolds. Manufactured by Spectre Performance, this spacer is universal fitment and performance-oriented, making it a great addition to vintage vehicles. With its vintage part status and California Prop 65 warning, this spacer is a reliable and safe choice for enhancing your carburetor's air and fuel delivery system. Made in China, this spacer is a must-have for car and truck enthusiasts looking to improve their vehicle's performance.