This 1-1/2" Quiet Pack is a great system for mild to mid-performance engines.  It fits Bugs, Ghias, and Buses and one of the few that can be used on a Bay Window.  It will work great with dual carbs on engines up to about 1914cc's.  It comes painted black to protect against rust during shipping.  The paint is not designed to be permanent, as it will burn off immediately when the engine is started.  If desired, clean the paint off with a quality solvent, and recoat with a heat resistant paint for a long lasting finish.