Applicable Model:Universal used in carburetors with 4 barrel carbs and square bore: for Chevy for Ford 350 SBC BBC BB 4BBL engines etc.Features:Made from durable Phenolic, corrosion resistance, high and low temperature resistance, provide long service life.With 4 hole open center design, our carburetor spacer improves the volume of the plenum chamber which increasing RPM and torque power.Reducing heat transfer from the intake manifold to the carburetor, increasing power and efficiency by provide denser air or fuel mixture.Specification:Thickness: 25.5mm / 1.00"(T)Thread Size: M8*1.
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