Edelbrock square-bore heat insulator gasket (#9265) for open 4150-style carburetors prevents percolation under extreme under-hood temperatures and allows open-plenum Torker and Victor manifolds to seal properly to the carburetor. Install directly against the manifold and note added height when checking air cleaner-to-hood clearance. Comes with extended carb studs for proper fitment.
Edelbrock Sq Bore Heat Insulator